Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Kent McPherson
 
Posts: n/a
Default Well pressure switch

I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not be
as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out. The pressures sound about right. The house
is 8 years old and I doubt if the system has ever had any maintenance. Is
there any I should have done to hopefully improve the pressure?


  #2   Report Post  
Duane Bozarth
 
Posts: n/a
Default Well pressure switch

Kent McPherson wrote:

I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not be
as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out. The pressures sound about right. The house
is 8 years old and I doubt if the system has ever had any maintenance. Is
there any I should have done to hopefully improve the pressure?


50 lbs ain't enough? That's pretty typical. What do you want/expect?
  #3   Report Post  
Pop
 
Posts: n/a
Default Well pressure switch

Those are pretty typical numbers; what is it that makes you think
it's a pressure problem rather than pipe blockages, things like
that?


"Kent McPherson" wrote in message
...
:I have an Aermotor T12-75 well pump with pressure switch. I
have no
: documentation on it. Our water pressure seems low. I assume it
should not be
: as good as our previous house that had city water but it does
seem a bit
: low. Watching the pressure gauge, the pump cuts in at 30 and
then works it
: way back up to 50 and cuts out. The pressures sound about
right. The house
: is 8 years old and I doubt if the system has ever had any
maintenance. Is
: there any I should have done to hopefully improve the pressure?
:
:


  #4   Report Post  
Michael Strickland
 
Posts: n/a
Default Well pressure switch

On Sun, 13 Nov 2005 10:08:07 -0500, Kent McPherson wrote:

I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not be
as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out. The pressures sound about right. The house
is 8 years old and I doubt if the system has ever had any maintenance. Is
there any I should have done to hopefully improve the pressure?


Sounds like things are operating normally - 30/50 pressure is fine. You can,
however, raise it if you like by adjusting the nuts in the pressure switch -
mine is 40/60. Need to make sure you don't get too high though - I've been
told that some shut-offs on things like washers won't work if the pressure is
too high.

Make sure that the pressure tank is ok by watching how long it takes for the
pump to cut on when water is running. If it takes a minute or more from full
pressure until the pump cuts in, things are probably fine. BTW, pressure in
the pressure tank should be a couple of pounds less than the cut in pressure
(30 psi from your post) - gotta drain the tank to check the pressure.

I would look for the following as possible causes of low pressu
1) whole house filter (will be located on the main water line) - cartridge
needs changing
2) fixture filter (under sink type) - cartridge needs changing (don't forget
fridge if it has one)
3) screens in faucets - look for sand or encrustation with calcium and/or
other minerals
4) shower heads - remove and check for sand or encrustation

Note that a whole house or fixture filter could include a water softening
unit, depending on water quality.

Soaking in vinegar can help loosen calcium encrustation so that it can be
brushed off.

If you find sand, I'd suggest putting in a filter (I have a whole house
filter as a preventative - installed it when I hooked the well to the house
during construction) and keeping the cartridge changed regularly - how
regularly depends on how long it takes for the pressure to start dropping due
to buildup on the filter. Sand in your fixtures can damage the shut-off
valves and cause dripping faucets and toilets that won't quit running all the
way - particularly unwanted in water using appliances like washers and
dishwashers.

Sand does not always come from running the well low - I had a lot of sand get
into my filter when the water table rose. My well was drilled when we were in
drought conditions and when we started getting normal rainfall 2 years later,
the powder that was forced into the cracks in the rocks when the well was
drilled was washed out by the higher water. Wound up with the filter clogging
twice in one month, but then things were back to the normal 2-3 months. Glad
I had the filter - wouldn't have wanted all that stuff in the house.

HTH

Later, Mike
(substitute strickland in the obvious location to reply directly)
-----------------------------------


Please send all email as text - HTML is too hard to decipher as text.



  #5   Report Post  
Don
 
Posts: n/a
Default Well pressure switch

"Kent McPherson" wrote
I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not
be as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out. The pressures sound about right. The
house is 8 years old and I doubt if the system has ever had any
maintenance. Is there any I should have done to hopefully improve the
pressure?


Is your gauge installed BEFORE the softener?
My system is brand new and has 2 gauges, 1 before the softener and 1 after
the softener.
Before reads 80 and after reads 55.
Next time I build a new house I'll have 1" pipes installed, I like alot of
flow in the shower and my wife likes those body jets.




  #6   Report Post  
Art
 
Posts: n/a
Default Well pressure switch

My well worked off 220 so make sure the power is off before you play if you
like living.

In my experience, the nipple pipe right below the switch used to get filled
with crap and that would make the switch sense pressure inaccurately. Also
you may be reading the pressure in the wrong spot.


"Kent McPherson" wrote in message
...
I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not
be as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out. The pressures sound about right. The
house is 8 years old and I doubt if the system has ever had any
maintenance. Is there any I should have done to hopefully improve the
pressure?




  #7   Report Post  
_firstname_@lr_dot_los-gatos_dot_ca.us
 
Posts: n/a
Default Well pressure switch

In article ,
Kent McPherson wrote:
Our water pressure seems low. I assume it should not be
as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works it
way back up to 50 and cuts out.


On one hand, you say that your water pressure seems low. On the other
hand, you say that it is 30-50 psi (most of the time it is probably
near 30 psi), which is on the low end of the typical range (40 psi is
more typical).

Either, your expecations are unrealistic, and you either need to learn
to live with the water pressure you have, or increase the pressure
(which might be easy, just adjust the switch, might require a more
powerful pump or more air charge in the tank, or massive changes to
the plumbing system).

Or (more likely), the pressure you measured (most likely at the pump)
is not actually the pressure that is delivered at the faucet. This
would be likely caused by some blockage (old pipes, clogged filter,
what have you). Here's one way to test it. Get a pressure gauge that
you can connect to a garden hose faucet, or even better directly to a
faucet or shower in the house. With no water flowing, you should
measure the same pressure at the faucet as at the pump (plus or minus
a little bit for the height difference, about 2.3 feet make one psi).
Once you turn some other faucet in the house on, watch the pressure
gauge on the other faucet. The pressure there should drop a little
bit, maybe a few psi. If the pressure there drops a lot, while the
pressure at the pump stays pretty constant, you have a blockage
somewhere in the plumbing between the pump and the faucets.

--
The address in the header is invalid for obvious reasons. Please
reconstruct the address from the information below (look for _).
Ralph Becker-Szendy
  #8   Report Post  
Kent McPherson
 
Posts: n/a
Default Well pressure switch

Well I appreciate all the posts to my question. Here's a couple of
clarifications. I measured the pressure at the gauge that is built-in. It
is before the water softener which I do have. I realize the 30-50 readings
are fairly standard. It could simply be a case of not knowing what to
expect from a well compared to a city water system. This is our first house
with a well. The water pressure is low compared to the city pressure and I
think I'm hearing that is normal. I'm thinking I'll just call the company
that put in the well pump/pressure tank and have them come check it out.
This house is 8 years old owned by only one previous owner who didn't do
much of anything in terms of maintenance. Maybe there is no maintenance to
this kind of system but might be worth a service call to get someone to look
at it and tell me it's OK.

wrote in message
...
On Sun, 13 Nov 2005 10:08:07 -0500, "Kent McPherson"
wrote:

I have an Aermotor T12-75 well pump with pressure switch. I have no
documentation on it. Our water pressure seems low. I assume it should not
be
as good as our previous house that had city water but it does seem a bit
low. Watching the pressure gauge, the pump cuts in at 30 and then works
it
way back up to 50 and cuts out. The pressures sound about right. The
house
is 8 years old and I doubt if the system has ever had any maintenance. Is
there any I should have done to hopefully improve the pressure?

Folks coming from municipal water systems are usually unimpressed with
the standard 30-50 well system. Municipal systems are usually 60-80.
(at least that is what it was in DC when I was there)

BTW when you see those GPM figures on shower heads and faucets, that
is X GPM @ 80 PSI. On a 30-50 well system you get a fraction of that.
Got a friend in Canada?



  #9   Report Post  
Michael Strickland
 
Posts: n/a
Default Well pressure switch

On Mon, 14 Nov 2005 06:50:46 -0500, Kent McPherson wrote:

I realize the 30-50 readings
are fairly standard. It could simply be a case of not knowing what to
expect from a well compared to a city water system. This is our first house
with a well. The water pressure is low compared to the city pressure and I
think I'm hearing that is normal. I'm thinking I'll just call the company
that put in the well pump/pressure tank and have them come check it out.
This house is 8 years old owned by only one previous owner who didn't do
much of anything in terms of maintenance. Maybe there is no maintenance to
this kind of system but might be worth a service call to get someone to look
at it and tell me it's OK.


Before I shelled out the $$ for a service call, I'd seriously consider
turning up the pressure in the pressure switch. You should be able to find
the instructions inside the cap of the switch, or if that's gone, possibly
finding a similar switch at HD or hardware store and jotting down the
instructions. They are very simple and, as long as you don't make major
changes in one operation, should allow you to raise the pressure safely to a
more suitable level. Of course, doing so means that you should raise the
pressure (should be 2-3 psi less than cut-in pressure) in your pressure tank
also - almost as simple as raising the water pressure. The only tool required
is a compressor - the kind found in auto emergency kits is what I use (never
tried, but understand a bike pump takes forever).

Procedure
1) adjust water pressure via pressure switch (don't proceed to step 2 until
you have the pressure you want)
2) kill power (required unless you have a shutoff that will allow draining
the tank without killing power) and drain pressure tank of water
3) pump air into the valve at the top of the tank until desired air pressure
is achieved
4) turn on power and repressurize system

BTW, since you said that the house is 8 years old and the former owner wasn't
the type to do maintenance, I'd suggest that while you have the cover off the
switch, take a look at the contacts to see if they're burned away. The
sparking when they make will eventually burn them out and you'll need to
replace the switch. That's pretty easy too - crescent wrench (maybe some
pliers to hold the pipe the switch is on to keep it from turning) and
screwdriver is all that's required as far as tools. Gotta turn off the power
and depressurize the system before changing it though. I dunno the lifespan
of a pressure switch, so I just check mine about once a year.

I'd still check the water softener, any filters and the fixtures to make sure
they aren't causing a problem, but if pressure is the only problem, you can
raise it easily enough yourself. I personally prefer 40/60, which is very
close to what I had when I was on city water. The house had a regulator
(don't have a clue what the pressure was set to) in the crawl space to drop
the pressure from whatever the city was providing. City pressure must have
been pretty high as the houses in the area all had regulators installed when
they were built (late '60s).

My personal experience (I'm a do-it-yourselfer) with pressure switches is
that some keep the same range (for example 30/50 to 40/60), others will allow
you to *also* change the range (for example 30/50 to 30/60). It depends on
the particular kind you have. Of course the actual pressures will depend on
how far (and which) nut(s) you've turned, I was just providing examples of
what can be done. The only tool required is a crescent wrench - you could use
a socket set instead, but the switches I've had experience with would
possibly require a deep well socket to fit over the screw and still reach the
nut.

When I bought my new washer, I asked the installer about pressure and he
recommended that the pressure NOT be over 80 psi.

Don't have a water softener myself, but do know that they require
maintenance. You might look online for the company that makes yours and see
if you can get a copy of the instructions. The softening resin has to be
recharged - the softening resin I use for tropical fish is recharged using a
brine (salt) solution. I would think that this could pose a problem for a
person on a sodium restricted diet (replacing calcium ions with sodium ions),
but I really don't know. For all I know, the ones systems used for homes use
some other ion replacement - never looked.


Later, Mike
(substitute strickland in the obvious location to reply directly)
-----------------------------------


Please send all email as text - HTML is too hard to decipher as text.



  #10   Report Post  
Don
 
Posts: n/a
Default Well pressure switch

"Kent McPherson" wrote
Well I appreciate all the posts to my question. Here's a couple of
clarifications. I measured the pressure at the gauge that is built-in. It
is before the water softener which I do have. I realize the 30-50
readings are fairly standard. It could simply be a case of not knowing
what to expect from a well compared to a city water system. This is our
first house with a well. The water pressure is low compared to the city
pressure and I think I'm hearing that is normal. I'm thinking I'll just
call the company that put in the well pump/pressure tank and have them
come check it out. This house is 8 years old owned by only one previous
owner who didn't do much of anything in terms of maintenance. Maybe there
is no maintenance to this kind of system but might be worth a service call
to get someone to look at it and tell me it's OK.


If your pressure switch looks like this: http://tinyurl.com/djmmd
you can undo the nut on top and pull the plastic cover off, then us a 7/16"
box wrench to turn the nut inside either direction and watch the gauge to
see which way to raise the pressure.
Be careful to not touch any of the electrical components inside, that stuff
is 220 volts!
I have 2 of these switches on my system and the one closest to the ground
gets clogged with ants and shorts the system out.
I then unplug the system from the power, remove the switch cover and use an
old toothbrush to clean the ants out.
Then I spray it down with WD40 and reinstall.
The maintenance on these systems is relatively low.
Drop a bag or 2 of salt in the tank every month, available at Lowes for a
few bux per bag.
I use the yellow 40# bags, they seem to last longer than the crystals.
Pour about 1/2 cup of bleach in the aerator every 2 months.
Once a year yank the drainplug out of the bottom of the aerator (after
unplugging everything) and wash the whole tank out, use a new broom or long
handled brush, and rinse thoroughly.
Check your pressure switches every couple months.
If the electricity goes out make sure you reset the timer on your softener.
If you have a tech come out to service the system, stand right over him and
pay attention to what he's doing.
Ask plenty of questions, they are more than happy to talk about the system
and what they do.


Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Re-Post for Wall Switch Harry Home Repair 1 July 27th 05 06:56 PM
Which Pressure switch for 4 inch well Jim Katz Home Repair 4 May 26th 05 07:45 PM
Aqualisa power shower pressure switch failed this morning dave @ stejonda UK diy 2 September 14th 04 05:25 AM
3 way switch disaster (long but interesting) RB Home Repair 8 July 23rd 04 02:18 PM
? pressure switch mounting ? wahzoo Home Repair 6 February 14th 04 03:10 PM


All times are GMT +1. The time now is 02:20 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"