Still haven't got round to sorting out an efficient way to power and heat my pool yet - had no time - but back onto it now.
For a heads up - I have a 3Kw solar system on my roof and feed-in more than I consume overall - except when the pool pump is on :). I am guessing if I replace my old pool pump and get a more efficient variable speed pump then I wouldn't have to worry so much. Or could use a power reducer of some sort such as futurewave but for some reason these are not cheap and for the cost would it better to get a new pump altogether? I guess I am not throwing a pump out if use a futurewave or similar. I wonder if Jaycar have something I could use :).
My pool filter is not on all the time. The only time I turn it on is for cleaning or if we are going to swim I switch it on then turn it off an hour or so later. I use the minimum amount of chlorine so you don't stink of chlorine and use no other chemicals at all other than some acid or ash if the pH is a bit out. I figure if the water is crystal clear then there is not a lot to worry about. I am looking at one of the solar powered ionizers that floats around to keep it clean as well - anyone have feedback on these? It drives me nuts when I take a water sample into a pool shop and before you know it they start piling up a bunch of chemicals. Worse still, is I took the same water sample to 3 different pool shops as an exercise and got 3 different results. And they get annoyed when I say I just want some chlorine and some more ash or acid. I now just stick to my $10 chlorine and ph test kit.
What helps my pool stay clean is a pool cover. I paid quite a lot as I purchased a safety cover due to small kids which they can walk on if they accidently go on it. It is the best one I have seen out there - it takes about 2 mins to put on/off so is not a pain. It has kept my water clean, algae free over the winter when I never turn on the pool filter other than a clean once every few months, it keeps the heat in, and I barely have any evaporation loss (more loss from bombs). It also catches water really well and I find I need to empty the pool a number of times over the year. I haven't topped it up in 2 years. Pool cover is from Remco if your interested. (I am not an agent for them ).
I am still looking at solar heating. Currently on warm sunny days, I can leave the cover off when the sunlight hits the pool and after about 3 days at mid 20s can have the pool at around 28C which is a good temperature. I tiled my pool specifically with dark blue tiles with black in them to attract the heat - often it is warmer at the bottom than on the top.
I have decided I am going to use a DC pump running on a solar panel that can be just left to move the water whenever it is sunny. With the pipe setup I am able to bypass the main pump and sand filter. Would you need a filter on this? Or should I still run it through the sand filter - I understand that high water flow is not required to pass through the sand filter but is required to clean the sandfilter with backwash.
With this setup, I guess I could leave the solar heating system to run through the day all year then use the main pool filter at night for a couple of hours (after 11pm) when the tariff is really low and when cleaning. A variable speed pump or power reducer should save even more.
Posted Wednesday 14 Mar 2012 @ 12:05:09 am from IP #