Bob999
Reporter
My understanding is that the poster asked for advice whether to buy a 1 or 1.5 cubic foot softener--either with the Clack WS1 head. He noted that the price difference was only $61 different from the source he was considering using.
I use 8 gal per minute per cubic foot of resin in sizing so if maximum water flow is greater than 8 gpm I would recommend the 1.5 cubic foot unit. Given the very limited water supply I don't see that it is reasonable to size for more that 12 gpm so I don't see much basis for going larger than 1.5 cubic foot. The final consideration, in my view, is whether 1.5 is too large given overall water use. My view is no given the planned installation of the ensuite facility.
I use 8 gal per minute per cubic foot of resin in sizing so if maximum water flow is greater than 8 gpm I would recommend the 1.5 cubic foot unit. Given the very limited water supply I don't see that it is reasonable to size for more that 12 gpm so I don't see much basis for going larger than 1.5 cubic foot. The final consideration, in my view, is whether 1.5 is too large given overall water use. My view is no given the planned installation of the ensuite facility.