After much reading I think I will build one of Harry's design still heads. It looks excellent. One issue for me is cooling water supply is rain water and LIMITED, so an efficient recycling system is necessary. Space is a problem so it cannot be too big, large garbage bin is ideal. I can either use a washing machine pump or a pond pump, have both from previous systems.
It is going on a 25lt stainless steel boiler with two elements and one of Pint's controllers.
My questions are to users of this design are there any issues I should be aware of either in building or operating.
I live in North Queensland and the climate has been known to get hot so efficient cooling is essential, I would like to get the size of the water cooler smaller than a car radiator, any thoughts on a car conditioner condenser or a small room air conditioner condenser with an appropriate fan. Would either of these create a pressure problem for a small pump?
