DIY solar heating for above ground pool

[marc.knuckle]

Look mate, do me a favour and stop posting. From my first post today i haven't been rude and have even specifically said that i just now want pump advice whether or not the system as a whole will work. You've posted 3 times today and none have been to help, but merely PUSH your opinion on someone less experienced and to try to be insulting with your link to a YouTube clip. What use in a forum is a YouTube clip like the one you've put in? I've asked for advice and instead get bombarded with you trying to make me feel stupid.

So, again, can anyone else advise if a submersible pump would work better here, mainly being able to push water around the approx 90m hose?

Thanks

[Someone-Else]

ah, I see you have the philosophy of "if I don't like the answer i am given I will whinge until I get one I do like"

Well why don't you not take my advice, go and waste (more) money on another pump and find out for your self what I have told you all along is true.

You could on the other hand do what else I suggested. (But you won't because that means NOT spending loads of money)

[marc.knuckle]

ah, I see you have the philosophy of "if I don't like the answer i am given I will whinge until I get one I do like"

Well why don't you not take my advice, go and waste (more) money on another pump and find out for your self what I have told you all along is true.

You could on the other hand do what else I suggested. (But you won't because that means NOT spending loads of money)

I tried to be polite. Do one mate. I'm not interested in your answers. None of them have helped with the pump suggestion I've asked for numerous times. I'm not looking for advice on if it will work as I've stated in each of the last few posts so why do you keep trying to massage your ego by posting the rubbish you are. What is it now, 4 posts with no help? Just do one.

If no one else can help with the pump suggestion that's okay but i am ONLY looking for advice on what type of pump would get the water up on to the shed roof, around the hose pipes and back down. Thanks

[moderator2]

@ someone-else. The OP has been quite clear. Please do not make any further replies to this thread unless constructive and relevant.

FWIW I know nothing about the subject.

Thanks.

The moderation team.

[wine~o]

Right... both those pumps have approx the same "head" Head being the amount of distance they can pump vertically (one is 6M the other 6.5 M)

the difference is largely irrelevant.

What is relevant is the flow rate. The dirty water pump delivers a much higher flow rate which is completely unsuitable for your purpose.

You need a flow rate low enough for the water passing through the "solar" heat exchanger to get heat into the water.

I would suggest for the purposes of this "experiment" that you create a closed loop, black hose pipe looped for your heat "gatherer" run back to the pool where you have a second heat "exchanger" in the pool which then returns to the pump.

Much like hot water is heated in an indirect boiler .

Whether the pump you have is man enough for the job ???

Will it actually work ??? that either. Just throwing some ideas in for you.

[marc.knuckle]

so i added another 30m of hose in one of the boxes and used the 400w submersible pump and due to all the friction in the hoses it means the flow is slowed and it is the right balance.

while standing outside the water it feels like there is a slight difference in temps but with a temp probe it showed the intake end at 21-22c and the outlet pipe as 28c. not bad, i obviously realise this increase is eaten up by the high volume of overall water in the pool but it has been adding to the sun directly warming up the surface by slightly warming the deeper water where the pipe rests.

the biggest sense of the difference is when you are in the water for a while and your skin temp reduces a little, if you then put that outlet pipe on your skin it feels very warm, not quite hot but real good.

[big-all]

glad your getting on top off it and getting it to work better
lets hope the increase in heat isnt purely due to the fact it was probably the hottest day this year in some places
and off course with body temperature being around 33 degrees anything lower will never feel hot just less cold with it needing to be perhaps 38-40 to feel warm to hot
remember temperatures shown are in the shade in still air with the actual direct in the sun temperature being perhaps 50-100% more