Hi,
Im installing a new thermostatic shower and pump on a gravity system in a bungalow.
Getting an independant cold feed from the CWSC to the shower is no problem. But, the hotwater tank is in the kitchen. So to supply the independant hot feed, i was planning on teeing off below the vent pipe branch then taking the pipe up into the loft, into the pump, then down into the bathroom to the shower.
My dillemma is the destructions on the pump are saying not to run the hot feed any higher than the height of the hot water tank. Now i can understand they are concerned about air being brought into the pump, blah, blah, but i will be teeing off below the open vent branch before i take it up and acrross to the pump.........
The hot tank is already raised, its almost touching the loft space anyway, but i just wanted some opinions as to whether you think the manufacturers are being OTT as usual or whether i should really not run the hot feed up into the loft, then pump then shower.........??
Also, do you reckon i should run both hot and cold in 22mm, reducing them to 15mm upon entry to the pump or just use 15mm all the way??
Thanks guys....................
Im installing a new thermostatic shower and pump on a gravity system in a bungalow.
Getting an independant cold feed from the CWSC to the shower is no problem. But, the hotwater tank is in the kitchen. So to supply the independant hot feed, i was planning on teeing off below the vent pipe branch then taking the pipe up into the loft, into the pump, then down into the bathroom to the shower.
My dillemma is the destructions on the pump are saying not to run the hot feed any higher than the height of the hot water tank. Now i can understand they are concerned about air being brought into the pump, blah, blah, but i will be teeing off below the open vent branch before i take it up and acrross to the pump.........
The hot tank is already raised, its almost touching the loft space anyway, but i just wanted some opinions as to whether you think the manufacturers are being OTT as usual or whether i should really not run the hot feed up into the loft, then pump then shower.........??
Also, do you reckon i should run both hot and cold in 22mm, reducing them to 15mm upon entry to the pump or just use 15mm all the way??
Thanks guys....................