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Smitty Two

In article ,
SMS wrote:

On 17/07/10 6:59 PM, wrote:

I plumbed the waste water from my RO into the pool and I have not had
to add water since.

Now that's a really good idea! That water is just wasted now. My RO is
in a location where that would be very practical for me to do that. But
when I'm away from home for an extended period of time there is no waste
RO water being generated.

RO kicks out about 5 gallons of waste per gallon of RO. If you're losing
150 gallons daily from the pool, you'd need to be consuming 30 gallons
of RO per day to keep up.

Smitty Two

In article ,
wrote:

On Sun, 18 Jul 2010 21:50:28 -0700, Smitty Two
wrote:

In article ,
SMS wrote:

On 17/07/10 6:59 PM, wrote:

I plumbed the waste water from my RO into the pool and I have not had
to add water since.

Now that's a really good idea! That water is just wasted now. My RO is
in a location where that would be very practical for me to do that. But
when I'm away from home for an extended period of time there is no waste
RO water being generated.

RO kicks out about 5 gallons of waste per gallon of RO. If you're losing
150 gallons daily from the pool, you'd need to be consuming 30 gallons
of RO per day to keep up.

If I was losing 150 gallons a day I would be looking for a wet spot in
the yard. That is a pool leak.

That was the figure the OP gave in the OP.

SMS

On 19/07/10 8:24 AM, wrote:

snip

If I was losing 150 gallons a day I would be looking for a wet spot in
the yard. That is a pool leak.

No, no leak, in cool weather there are no losses at all. In very hot
weather (July, August, September) I can lose 1/8" to 3/16" per day. The
pool area is about 75000 square inches in area. A gallon of water is
about 231 cubic inches.

75000 sq in * 0.250" /231 cu in/gallon = 81 gallons
75000 sq in * 0.375" /231 cu in/gallon = 122 gallons

Okay, closer to 100 gallons than 150 gallons.

At my late mom's house in Florida the pool never needed water added
because in the summer there was enough rain to offset evaporation. In my
area of California there is no rain in the summer, and little humidity
so evaporation is much greater. I can reduce it a lot by putting on the
pool cover but that gets the pool uncomfortably warm.

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