Mart
Member
I recently installed a Grundfos Comfort 10-16 DT PM BU/LC hot water recirculating pump and a single Grundfos Comfort 00595926 thermal bridge valve (I.E. retrofit application, using cold water line for return, no dedicated return pipe) that is installed at the furthest sink (kitchen) from my hot water tank, powered as need be via an Eve smart plug. It works properly, in terms of the hot/cold water flow and valve shutoff, but it still takes an inordinately long time for the hot water to initially arrive when the pump is switched on. I’m considering installing a second bypass valve on another faucet to potentially reduce that initial h w wait-time. But I’m unsure as to if that would, in fact, help, or how our hot/cold water line(s) are plumbed in our two-story house with basement and hot water taps on all floors, or as such, where to install that second valve for maximum benefit.
Might it help to add one or more additional bypass valves? And if so, should I install it on the faucet that takes the second longest (after the kitchen) for hot water to arrive, with and without the pump on (which in my case is a bathroom tap, same floor and quite close to the kitchen tap with installed bridge valve)? Or should I install it on an upstairs tap or basement tap, even though all of those hot water taps all have much speedier hot water flow even with the pump off? Grundfos offers no help on this issue, far as I could determine, so I’d appreciate any advice/info, thanks.
Might it help to add one or more additional bypass valves? And if so, should I install it on the faucet that takes the second longest (after the kitchen) for hot water to arrive, with and without the pump on (which in my case is a bathroom tap, same floor and quite close to the kitchen tap with installed bridge valve)? Or should I install it on an upstairs tap or basement tap, even though all of those hot water taps all have much speedier hot water flow even with the pump off? Grundfos offers no help on this issue, far as I could determine, so I’d appreciate any advice/info, thanks.