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jeff February 18th 05 04:33 AM

Reverse Osmosis Tank Charging Question
 
Hi,

After changing filters in the reverse osmosis system, how long does it take
for the tank to be fully charged?

Is it normal to see the water in the return line (clear plastic line) flow
swiftly into the drain as the tank is charging?

Thanks,

Jeff M



John February 18th 05 01:44 PM


"jeff" wrote in message
...
Hi,

After changing filters in the reverse osmosis system, how long does it
take for the tank to be fully charged?

Is it normal to see the water in the return line (clear plastic line) flow
swiftly into the drain as the tank is charging?

Thanks,

Jeff M



The water should come out the drain continuously as it makes water, but I'm
not sure what you mean by "swiftly". If it appears to come out at incoming
line pressure, make sure you're not missing a filter gasket. As far as how
long it takes to recharge the tank, you need to know the rating o the
membrane, for example: 25gpd (gallons per day). Figure roughly 1/2 the
rating for actual production. If your water pressure is very low or very
cold, it can be as little as 1/3 of the rating. The rating is determined at
a lab controlled temp and pressure, and of course, that is not reality, but
gives you a relative value. Since your tank probably holds a little over
two gallons of water, it takes about 4 hours to charge using a 25gpd
membrane. Keep in mind these are rough estimates.

John



tomeshew February 18th 05 07:47 PM

Quote:

Originally Posted by jeff
Hi,

After changing filters in the reverse osmosis system, how long does it take
for the tank to be fully charged?

Is it normal to see the water in the return line (clear plastic line) flow
swiftly into the drain as the tank is charging?

Thanks,

Jeff M

It can take a while, depending on the size of your storage tank. I've got an 8 gallon storage capacity, and it'll take a day and a half to fully charge the tanks. You're draining the brine? You know, these systems waste about 3-4 times the water that it filters for drinking purposes. You should do something with all that wasted water, like flush toilets, or laundry or something. HTH. Tom

jeff February 19th 05 06:01 AM

thanks Tom



"tomeshew" wrote in message
...

jeff Wrote:
Hi,

After changing filters in the reverse osmosis system, how long does it
take
for the tank to be fully charged?

Is it normal to see the water in the return line (clear plastic line)
flow
swiftly into the drain as the tank is charging?

Thanks,

Jeff M

It can take a while, depending on the size of your storage tank. I've
got an 8 gallon storage capacity, and it'll take a day and a half to
fully charge the tanks. You're draining the brine? You know, these
systems waste about 3-4 times the water that it filters for drinking
purposes. You should do something with all that wasted water, like
flush toilets, or laundry or something. HTH. Tom


--
tomeshew




jeff February 19th 05 06:02 AM

thanks John



"John" wrote in message
...

"jeff" wrote in message
...
Hi,

After changing filters in the reverse osmosis system, how long does it
take for the tank to be fully charged?

Is it normal to see the water in the return line (clear plastic line)
flow swiftly into the drain as the tank is charging?

Thanks,

Jeff M



The water should come out the drain continuously as it makes water, but
I'm not sure what you mean by "swiftly". If it appears to come out at
incoming line pressure, make sure you're not missing a filter gasket. As
far as how long it takes to recharge the tank, you need to know the rating
o the membrane, for example: 25gpd (gallons per day). Figure roughly 1/2
the rating for actual production. If your water pressure is very low or
very cold, it can be as little as 1/3 of the rating. The rating is
determined at a lab controlled temp and pressure, and of course, that is
not reality, but gives you a relative value. Since your tank probably
holds a little over two gallons of water, it takes about 4 hours to charge
using a 25gpd membrane. Keep in mind these are rough estimates.

John





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