Recirculating using the waste port

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A

AndyPTx

0
Mar 26, 2018
99
Sulphur Springs, NE Texas
Pool Size
13500
Surface
Vinyl
Chlorine
Liquid Chlorine
If my pool water is clean, is there a reason to not use the waste port to circulate pool water back into the pool?
I am using/want to continue to use the 'black hose method' to help warm my pool (positioned with some shade for the wife - shade is growing 😔)
Running the water like a very extended return from the filter, through the black hose, and back into the pool involves unscrewing the actual return hose connection from the filter, screwing in the 'black hose' adaptor, then unscrewing and switching back again. Keep doing that seems inideal. I figured using the waste port I could leave the black hose connector, erm, connected!
?
 
Texas Splash said:
To be sure we/I understand, you are wanting to use the black hose connected to the WASTE port, but then have it go back to the pool because the hose absorbs heat to keep the pool warm. Is that correct?
Click to expand...
Exactly right. Yes. Pool water through the black hose for heating and then back into pool.
Repeatedly unscrewing the regular return, to screw in the adaptor the black hose is connected to, and back again later for regular return does not seem ideal.
So, if I could run pool water out the waste port to the black hose, I could leave everything connected.
 

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That's what I thought! Thanks to my consideration for wifey (why o why!) the sun's not on the pool much now, so I'll take the water where the sun IS!
But that is connected to the filter return, and I have to swap it back and forth with the ACTUAL return hose. So I want to connect this to the waste outlet.
If I put clean pool water through it, nothing nasty should get introduced to the pool? Dirt? Worse? Am I overlooking anything?
 
So you’re just throwing it over the side & bypassing the jet? This could accidentally cause you to drain your pool if it’s not secure. Not to mention there will be no filtering happening during this time.
On another note, most folks in your area are trying to cool their pools right now - is this just temporary because its a fresh fill & it’s cold or something? I don’t have a heating set up like u but i do run a sprinkler to cool my pool & generally when I need it the air temps are going to stay hot for some time so I don’t find myself having to remove the sprinkler for an extended period of time. I can imagine needing to heat the water would work in the same way with the set up u have.
Even better would be to have a 3 way valves so you could change course without removing hoses etc.
 
It so happens that this is a recent refill for the reason shown in the pic I'm about to attach. So the water hasn't had chance to warm up. And - and this is the part that frightens and annoys me to admit out loud - it gets full sun only about 3 1/2 hrs a day. 😡 I SOOOO want to cut down or at least copice that dang tree!!!
(I envy to an unhealthy degree people here who's pools are in all day sun and gloriously warm).
I realize about the filtering but I run it regular (ie filtered) overnight (no thus no point). This is at most 7 hrs a day.
A two-way splitter screwed into the filter's return port would be excellent! Connect them both and just flip a 'switch'! Does such a thing even exist??!!
 

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I know the water coming out of the hose is warm, but realize, the overall BTU addition is relatively minor. So do not expect a significant water temperature rise. You will get more from covering the pool over night to reduce evaporative cooling.
 
I hoped the heat would do more than that, since over a few days I would essentially be refilling the pool with heated water?
You're totally right of course about overnight evaporative cooling. Scary thing is that with the location and the tree, with using covers overnight right from the start of the steadily warming temps in May, it takes time and is a huge achievement to get the pool in the vicinity of 90 degrees 😟
(I've only had since barely before August)
Will recirculating the gradually warming pool water and steadily adding more warmth, be so ineffective? I'm fully open to being corrected in my thinking.
 
It is all about BTU. Measure it. What flow rate through the hose? What temp gain?

For example. If you can get 10 gpm through the hose (I suspect that is high) and you get a 30F temp gain (again, I suspect that is high), you are adding about 2400 BTU per min. Or 144k Btu per hour. That will raise your 10500 gallon pool by about 1.5F each hour.
 
How might I figure the flow rate?
I can empty the hoses and then time how long it takes the water to travel the length. And somehow calculate the volume of water in 14 50ft hoses (700 ft of regular diameter garden hose).
If I take your numbers and go conservative with them at 1F per hour, that would be 7F over a 7 hour sunny day.
Wow! IF that's even NEARLY possible, I'd take that any day a week and twice on Sundays!!
 
I say record that starting temp and run it. Check it in 24 hrs to see what kind of heat gain you get while we still have some good TX sun. Can't hurt and you have everything there. Even if you only gain 5 degrees, it might be enough to make swimming a bit more comfortable. :swim: Curious minds want to know. :)
 
Suck.
(Or not - lol)
I guess I'm gonna run it into a bucket or something bigger and find out.
People like you that know and can run those kinds of numbers (BTU et al) amaze me. We are so lucky to have you on here.

Probably shouldn't mention the added - ahem - bonus (?) that the replacement pool is 52 inch and therefore more like 13,500 gallons.....
 
Texas Splash said:
I say record that starting temp and run it. Check it in 24 hrs to see what kind of heat gain you get while we still have some good TX sun. Can't hurt and you have everything there. Even if you only gain 5 degrees, it might be enough to make swimming a bit more comfortable. :swim: Curious minds want to know. :)
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Thing is I'm kinda fine - at least to get in. Born and raised in Blighty, traveling to the south coast for water fun, temps approx NEVER barely into 20s (correct me if I'm wrong). That's around 68F. Mmm toasty 🔥
My wife (RA makes her body temp-sensitive) can't do that, plus I like it to get nice for the neighbours, plus I just LIKE it in the 90s.
 

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