This is located at a 58 room hotel property. We've had a couple plumbers out that have told us to leave the ball valve alone and it'll be fine. Obviously, we aren't going to wait until the ball valve under the recirculating pump fails so we will be replacing it as well as the pump. I have a few questions.
1. What is the loop on the left side for that is capped with PVC? Spare pump or were there two pumps running together previously if that's even possible? To purge air? If it's unnecessary I might as well remove it all.
2. The pump is a Grundfos UP15-42F which is made of cast iron. Should that be replaced with a similar spec bronze or stainless steel because it is used to circulate water for showers and bathroom fixtures? If so, any recommendations?
Any help is much appreciated. Thanks!
1. What is the loop on the left side for that is capped with PVC? Spare pump or were there two pumps running together previously if that's even possible? To purge air? If it's unnecessary I might as well remove it all.
2. The pump is a Grundfos UP15-42F which is made of cast iron. Should that be replaced with a similar spec bronze or stainless steel because it is used to circulate water for showers and bathroom fixtures? If so, any recommendations?
Any help is much appreciated. Thanks!