Just got a new water heater and the plumber insisted that all recirculating pumps should now be installed to recirculate hot water down at the drain valve instead of on top of the water heater. Is this the best place for the GRUNDFOS, b/c I think their website says to install at the top of the water heater.
BTW it is a 20+ year old GRUNDFOS UP15-18SU and was wondering what the lifespan of these things are? I don't have a timer on it so it runs constantly. Now debating if I should just invest in a new pump or add a timer to this existing one. Plumber installed shutoff valves on both sides of the pump.
BTW it is a 20+ year old GRUNDFOS UP15-18SU and was wondering what the lifespan of these things are? I don't have a timer on it so it runs constantly. Now debating if I should just invest in a new pump or add a timer to this existing one. Plumber installed shutoff valves on both sides of the pump.