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I’m running a 1 inch recirculating loop to 3.5 bathrooms,. Should I run a 1/2” branches off that 1 inch line to each fixture, as they are all within 10 feet of the 1 inch line? Or, should I run 3/4” inch branches to each fixture and step down to 1/2” at the connection?

Installing a recirculating pump for hot water, but I have a run from the basement to the 3rd floor on the right- do I need to go up and down with an 1” line or can I just have a 1” branch go off the loop to that floor?

Everyone, I submitted some diagrams a while ago about a renovation, and you were all gave me some great advice. I submitted the plans, and they were approved. Then I hired a pro plumber to come in, he basically scrapped the plans and started over. Can you take a look at these photos and let me...

100 year old house, but high end for its time. 2 full baths on the 2nd floors, one 1/2 Bath on the first floor. The layout was 4” cast iron, servicing all the bathrooms and fixtures, with no venting except where the waste line comes into the basement, ties in below a 4” vent stack that goes to...

Trying to salvage this layout, it’s very tight space. Can can I add a 2” wet vent as marked yp from the lav next to the toilet, under the toilet connection be up to code? The vertical stack is going up to another bathroom on a different floor so that can’t be used to vent. Is there a better...

Working on a 100 year old home, have removed the cast iron and am replacing with PVC. I am limited by the existing structure hence some of the quirks. There are 2 full baths on the second floor, side by side, on a 3” line with a 3” vent in the middle going to the roof. All the fixtures are...