On Jul 15, 10:22*pm, Mark wrote:
On Jul 15, 9:11*pm, ransley wrote:



On Jul 15, 5:01*pm, SMS wrote:

In the summer I probably lose 150 gallons a day or so to evaporation
with the level falling about 1/4" per day. If it falls below the skimmer
level the pump will such air because the bottom drain is no longer
functional. The problem is when I go out of town for work or on vacation
and no one monitors the pool level.

Yesterday I replaced the manual fill valve with a 24VAC valve and hooked
it to my sprinkler controller so I can add water automatically, but
there is no feedback as to the water level. I'm trying different daily
fill times to find one that maintains the water level relatively
constant, but it's inexact and depends on the weather.

I want to construct some sort of level detector that will cut off the
automatic fill valve if the level gets too high, or I could disconnect
the timer and hook the level detector relay directly to the valve.

I was thinking of this:

"http://www.ingramproducts.com/Pumps_Level_Controls-24_VAC_Multi_funct..."

and this:

"http://www.ingramproducts.com/Pumps_Level_Controls-Custom_Sensor_Asse..."

In the winter and spring I often have the opposite problem, the pool
overflows from rain, and I'd like to also do something that opens the
pump's drain valve diverter and removes water until the level falls to
the proper level.

There is something called google, go and type in Float Valve, you will
be lucky.

I think your going to need something to average out the result..
unless you don't mind the valve turning on and off with every wave..


You wouldn't put such a valve in the main pool itself, however you
would
want to locate it somewhere connected to that body of water where it
would not be subject to wave action when the pool is being used and
the
automatic filling of the pool would create waves itself which might
add too
much water...

You would want to build a chamber of some sort, like a sump pit,
connected to the pool with a large diameter pipe... Within that
chamber
you would install the float valve which would regulate the water level
of the
pool... Since a body of water always levels itself out this would
work as
long as the water inlet where the water is to be added is not within
the
chamber and was located far enough away so that any motion or
turbulence
created by the addition of the water would not effect the operation of
the
float valve... The idea of a body of water always leveling itself out
is why
water levels are used in construction on some projects where a laser
level
is overkill or not an affordable option...

~~ Evan