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Thread: Right tubing for DIY Solar Collector

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    happyheathen's Avatar
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    Right tubing for DIY Solar Collector

    Somebody out there has got to have found a good, flexible, UV-resistant black tubing in a size appropriate for this function at a price which won't make store-bought look cheaper.

    Recommendations?
    Dave
    Sacramento
    1980's 15,000 Gal IG Plaster; 1 1/2 hp Hayward Northstar; Hayward Swimclear C3025 Cartridge Filter (325 sq ft, nom.); Pentair Legend; Polaris PB4-60; Equipment 40' from pool. p.s.: it's an aye-aye.

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    Mod Squad jblizzle's Avatar
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    Re: Right tubing for DIY Solar Collector

    Cheaper, easier and more efficient to buy the pool panels designed for solar heating. Check eBay. Under $100 for 40sqft. You would need almost 500 feet of 1" tube to give the same area and it would not be as efficient.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    dumbcluck's Avatar
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    Re: Right tubing for DIY Solar Collector

    Jason, I see that you are running 500 sq ft of heliocol panels on an 18k gallon pool. seems like overkill especially in Arizona. definitely not criticizing, just wondering, are that many necessary to keep the pool temp where you like it?
    I am looking into a heliocol system as well. i think i can get 400 sq ft w/ everything needed to self assemble for around $3k. does that seem reasonable?
    I am guessing my pool is in the neighborhood of 20k gallons.(still working on it)
    -Jimbo- My pool was full of dirt and trees. Now it's full of water and children!
    20k gallon inground pool, 18" raised spa 7' round, 8 jets, 3" spa plumbing. Pentair intelliflo 3hp vsp, Easy touch 4 w/ ic 40, CCP 420 cartridge filter, Raypak 407a w/ cupro nickel, Screen logic 2, Pentair intelliph, spa side remote, Pentair 5g color lights pool and spa, TF-100 test kit with speed stir and Dolphin Oasis Z5

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    Mod Squad jblizzle's Avatar
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    Re: Right tubing for DIY Solar Collector

    That is what I could easily fit on the roof. Solar does not run much in the summer since the water is already warm. The more panels the more heat I can add in the spring and fall. Note I don't use a cover, so I lose a lot of heat to evaporation.

    I got my panels used off Craigslist. Installed myself for under $1500.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    dumbcluck's Avatar
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    Re: Right tubing for DIY Solar Collector

    gotcha Jason. thanks. good deal.
    -Jimbo- My pool was full of dirt and trees. Now it's full of water and children!
    20k gallon inground pool, 18" raised spa 7' round, 8 jets, 3" spa plumbing. Pentair intelliflo 3hp vsp, Easy touch 4 w/ ic 40, CCP 420 cartridge filter, Raypak 407a w/ cupro nickel, Screen logic 2, Pentair intelliph, spa side remote, Pentair 5g color lights pool and spa, TF-100 test kit with speed stir and Dolphin Oasis Z5

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    happyheathen's Avatar
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    Re: Right tubing for DIY Solar Collector

    I have absolutely lovely strips between the pool and side and rear fences. The rear is the South, and the fence is 6' opaque, so it would not get hit until about noon.
    The side strip, OTOH, is just begging for a stand-alone sump-pump water from pool to collector. then a hose to return heated water.
    It's just too narrow to have a 4' wide collector AND a footpath - hence the DIY question - I suppose I could put 3 of the 1' wide "patch panels" and string them together - but I suspect the flow would be erratic, and the "One kit required for each install" stuff would get out of hand.

    Yes, I have a nice south-facing roof where the original collectors were installed - over a VERY cheap roof/ I have the remains of water stains to prove they left that roof on WAY too long.
    Guess the quality of the current roof? (Hint: foreclosure).

    If I do put up a roof-mount Heliocol or such, I'd use Al box beams and lag screws (have Stainless on hand) with Al angle to brace to upper.

    At either 8' or 10' lengths, would it be possible to slavage them intact (there are no vents, flues, etc on this surface) when this roof is replaced? The pump size is the same as original, and rated for 80 gph - again, 40' from pool in PVC. I suspect the roof solar (would have been copper tubing in a glazed box in '88, right?) and distance (friction loss) is responsible for the over-sized pump.

    Jason - do you have numbers on the temp rise you get under various sun conditions? I was a bit taken aback by 500 sq ft in Tucsan - I had no idea such area was required. Relieved to hear that it is personal preferences and not exactly required.
    Dave
    Sacramento
    1980's 15,000 Gal IG Plaster; 1 1/2 hp Hayward Northstar; Hayward Swimclear C3025 Cartridge Filter (325 sq ft, nom.); Pentair Legend; Polaris PB4-60; Equipment 40' from pool. p.s.: it's an aye-aye.

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    Mod Squad jblizzle's Avatar
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    Re: Right tubing for DIY Solar Collector

    I don't have specific numbers. Right now I think it only runs for about an hour in the morning to be back at nearly 90. In the spring I can pick up about 6 degrees in a day, but lose about 5 degrees over night without a cover.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Right tubing for DIY Solar Collector

    With the lower cost now of 4x20 panels, your way cheaper to buy them than make out of black tubing. I did both, and cost me less on the panels.
    Ultra 16', Intex Sand filter/pump combo, 8' x 20' solar panels, solar blanket w/roll tube, 1" extruded foam floor with Gorilla pad, Liquid chlorine and stabilizer.

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