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Thread: Two Spa Ideas

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    launboy's Avatar
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    Two Spa Ideas

    As the topic says, I like to ponder cheap ways to do expensive things. My lasted idea is how to make a Spa.

    Idea One:
    This one is a way to get all the benefits of a Stand-Alone(SA) spa, with the easier maintenance of a built in spa. Basically, you just get a SA spa and add some extra piping so the water can circulate between the spa and pool. This does involve a lot of plumbing and valves though. I drew a diagram of this, but in my diagram, both the ABG Pool and Spa are buried so the pump and heater are moved out of the spa housing and would be put up near the rest of the pool equip.

    In this pic the spa pump is either off or just recirculating the water. The pool pump does any filtering that needs to be done. The elec. heater is the heater from the spa. It could supplement the solar heat and/or gas heater(not shown).


    Idea Two:
    Build your own vinyl lined Spa. This idea would use the some plumbing and all of that as a "real" spa, but instead of buying the spa you basically build your own. I've put plenty of thought into this one and have some questions too. First, is there a problem using vinyl for a spa? If there is, this whole idea is out the window, if not, read on.

    I'm thinking buy the smallest Intex pool they make(8' I think) and cut a big hole in the bottom. This pool will be the upper wall and seat liner. You will need another small Intex pool for the footwell area. Just cut the wall out of this pool and use it as the lower wall(under the seat). Then(an here's another question, how??) you would have to join the pieces together. The best I've been able to come up with is to leave a large overlap and use a lot of some type of glue(PVC, vinyl, contact cement) to hold them together. I was even thinking to fold the overlap over after it's been glued and sew it(like they do
    with camper canvas).

    Another simple option would be to use a plain intex pool and make PVC and plastic or netted fabric stuff to make a bench that goes around the pool. This would be much less likely to leak.

    Then, you would do you own plumbing using spa jets and flanges(like normal Intex pools) to go through the walls. Another idea I had was to use shower heads or just plain pipe as jets. The shower heads would require you to make little PVC wells to they would sit flush with the walls, but it might be worth it. The reason for the shower heads is flow rates. Most jets need 10-20 gpm per jet while a showerhead may only need 1.5-4 gpm. Using showerhead's would also give you many options to different styles. The questions... Would 2.5 GPM through a showerhead provide any noticeable jet action? Would a blower add more power to these?

    Thanks for your input,
    Adam
    18' x 42" Intex Easyset Pool, with 16' x 52" deep end in the middle. Approx. 5500 Gal.
    Hayward Power-Flo LX 1 HP, 100# Jacuzzi Brand Sand Filter(Piped underground so it looks nice) 8)
    3 - 2' x 20' Solar Pool Heater Panels(roof mounted)
    Goin' on 9 summers...NOBODY thought it would last this long.
    Buried Portable Spa sharing pumps and water with pool (Almost complete project)

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    Join Date
    Dec 2007
    Location
    Central New York
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    Re: Two Spa Ideas

    Quote Originally Posted by launboy
    As the topic says, I like to ponder cheap ways to do expensive things. My lasted idea is how to make a Spa.

    This is cheap.

    Hotrod30

    20 X 40 foot vinyl Borates and Salt Pool
    Rolachem Chlorine Feeder
    Hayward 27 inch sand filter with 80 lbs of pea gravel
    Jacuzzi Splash Pak SP55 DE filter in parallel
    Pentair VF3050 pump

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    DaveNJ's Avatar
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    May 2007
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    Toms River, NJ
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    520

    Re: Two Spa Ideas

    I like it Hotrod30. Put a trolling motor on it and your set. Get er done!
    IG 18x36 oval vinyl, Spill over spa, Northstar 2hp-2spd, 2.5" piping, S310T 500lb Sand filter, 400k gas heater, AutoPilot SWCG
    http://www.tftestkits.net/

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    launboy's Avatar
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    Re: Two Spa Ideas

    Well, I'm actually moving ahead with this plan. Digging starts tomorrow and I even have a friend to help.

    Specs:
    -Inground Round spa
    -6 ft. diameter
    -3 ft. total depth
    -375 gallons
    -28 sq. ft. surface area
    -vinyl liner
    -2" foam board insulation
    -Jets, unsure, depends on GPM required by each(so far 2 jets)
    -2 main bottom drains(no skimmer)
    -2" PVC pipe - 35' between pump and spa
    -1 530 GPH cart filter(circulator)
    -1 1 HP AG pump(30 GPM) - shared with pool
    -100 lb. sand filter - shared with pool
    -160 sq. ft. Solar heat - shared with pool
    -1 12 amp elec. leaf blower(to power the bubbles)

    Ok, here's the questions...
    1. What can I use as low flow jets/where can I find them?
    2. Will 160 sq. ft. of solar heat this 375 gal. spa to 100+ degrees?
    3. Will I need a second pump to get enough flow to power the jets?
    4. Can you feel the jet action of a 2.5 gpm showerhead?

    Thanks,
    Adam
    18' x 42" Intex Easyset Pool, with 16' x 52" deep end in the middle. Approx. 5500 Gal.
    Hayward Power-Flo LX 1 HP, 100# Jacuzzi Brand Sand Filter(Piped underground so it looks nice) 8)
    3 - 2' x 20' Solar Pool Heater Panels(roof mounted)
    Goin' on 9 summers...NOBODY thought it would last this long.
    Buried Portable Spa sharing pumps and water with pool (Almost complete project)

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