In my previous post (//www.diynot.com/forums/viewtopic.php?t=104699), an essex/surrey flange was recommended for my installation of an aqualisa axis digital pumped shower. The processor/pump unit is going in the loft.
Case A: I have called Aqualisa to confirm their instructions. They only require a downward tee be taken from the existing DHW pipe (marked C in my picture). There is no requirement for essex/surrey/warix flanges and anti-gravity loops. (This is the same in the Triton Satellite digital unit).
Case B: All pump instructions I have seen (Stuart Turner, Salamander, etc) state that if the pump is going in the loft an anti-gravity loop off an Essex flange MUST be installed along with a manual air vent.
Is there something about these processor units that differ from a standard pump? Integrated air vent etc? Not built to last?
From reading other posts I understand why one sould fit an essex and AGL. So, should I just follow the MI (has 5 year warranty) or be extra safe and install essex, AGL, etc?
Case A: I have called Aqualisa to confirm their instructions. They only require a downward tee be taken from the existing DHW pipe (marked C in my picture). There is no requirement for essex/surrey/warix flanges and anti-gravity loops. (This is the same in the Triton Satellite digital unit).
Case B: All pump instructions I have seen (Stuart Turner, Salamander, etc) state that if the pump is going in the loft an anti-gravity loop off an Essex flange MUST be installed along with a manual air vent.
Is there something about these processor units that differ from a standard pump? Integrated air vent etc? Not built to last?
From reading other posts I understand why one sould fit an essex and AGL. So, should I just follow the MI (has 5 year warranty) or be extra safe and install essex, AGL, etc?