Solar heating hack for an Intex SPA hot tub.

[rin67630]

Here is an easy heck to add solar heating to an Intex SPA.
It does not need any pump, but just derives a part of the filter water stream into a loop of electrical corrugated conduit that runs through a greenhouse box.
(n.b. the photographs are old ones of the first version using an irrigation hose)
Solar heating hack
Enjoy!

 

[befeleme]

Here is an easy heck to add solar heating to an Intex SPA.
It does not need any pump, but just derives a part of the filter water stream into a loop of electrical corrugated conduit that runs through a greenhouse box.
(n.b. the photographs are old ones of the first version using an irrigation hose)
Solar heating hack
Enjoy!

I would like to connect my Intex SPA to solar heating and while searching the solution, I found your post. However, the link is not valid anymore. Could you, please, share it again? I have a solar heating mat for pools with standard pool hoses, but I have not made up how to connect it to Intex spa (without leakage ).

 

[rin67630]

I would like to connect my Intex SPA to solar heating and while searching the solution, I found your post. However, the link is not valid anymore. Could you, please, share it again? I have a solar heating mat for pools with standard pool hoses, but I have not made up how to connect it to Intex spa (without leakage ).

Oh I just have seen that my underwater vacuum cleaner description needs a revision.
I now filter before the pump and am using a metallic scourer as a filter. It is astonishly efficient and cleans very well. after the cleaning, just rince the scourer under your water tap.

 

[brainwashed]

I used something similar for small plastic pool, slightly bigger than your SPA. The water got nice and toasty but I could never get rid of the algae. All the flow went through an oversized sand filter and tried every chemical/pH thing I could get my hands on. Even after a complete water change and clean, it did the same once the water reached a constant 30C.