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Residential frost-free wall mounted hose bibs - do inspectors in your area require them to be lead free? I was getting ready to order a hot+cold frost free hose bib, and realized that Woodford, one of the most respected manufacturers of frost free hose bibs, only makes one low-lead ('lead...

I'm installing a residential range hood exhaust system. It includes a (used) 54" Wolf island range hood, 10" ducting, and a Broan 335 rooftop mounted 1200 CFM variable speed blower. The ducting run (including 2' below ceiling level) is about 15' long, and consists of 10" rigid duct, 3...

I have a few questions about 2023 NEC, Article 424. I'm in the process of ordering a 12kW duct heater for a residential kitchen makeup air system in a single family dwelling. The fan is not integral to the heater, rather separate equipment. I had an electrician out last week to discuss the...

Apologies in advance for this being lengthy... I have an odd situation going on. I have a moen flo smart water valve that has shut off the water after detecting 0.1-0.3 gpm flow for 10 minutes 6 times over the last 3 nights... only late at night. It then turns off the water. I've been up for...

Plumbers, do you disinfect your new water supply plumbing systems? While ICC (IPC) writes systems should be disinfected, the Copper Institute seems to lean away from it (if not required), and points to the Water Research Foundation's papers on corrosion "Lead and Copper Corrosion Control in New...

TLDR; I'm air/pressure testing the water supply system snaking through one end of my house. The pressure creeps down slowly. I've checked every joint by hand at 20 minutes, and haven't detected a drop anywhere, but pressure dropped more overnight. More details below. What might be going on...

TLDR: I have some 1" copper that sat partially installed a long time, and is a bit gunky inside. Do I need to cut out the ends and physically remove the construction dust/gunk and then sanitize it? Or, is there a good flushing means to clean the walls of the pipe through flushing? Background: I...

The ABS DWV runs in areas where a release of water during testing would be not-good (some finished drywall, storage directly on floor, etc). I'd prefer air, but that sounds risky. Would love to know alternate approaches to lessen the risk. 1. Are these are Oatey or Fernco caps like these...

Have a few pressure challenges, and looking for some insight. TLDR: have some long distances to run cold water in my house, and would like to understand: Questions: - For an above-garage apartment (1 bedroom, small kitchen, 3/4 bath, washer dryer), is it appropriate oversize the plumbing from...

I'd like to add a utility/slop sink to be located in the space below a flight of stairs, near the garage. It's currently a closet with some radiant manifolds (shown below, disregard the temp'd in radiant :). In the past, an inspector or contractor mentioned there was a related code violation...

I have some 1" copper I'm looking to insulate, and surprised how much slop there is between the pipe and insulation... more than 1/8" gap when pressed to one side. I checked some of the rubber foams versions of insulation, as well as some 1-1/4" insulation I got from the supply house, and all...

TLDR: In my home, I sized (Per IRC) the cold water trunk on the west side of the house at 1-1/4" copper and east side side of the house at 1" copper. I am now extending the 1" from the east side of the house to the garage and hoping to confirm sizing of that last section of the trunk as 3/4" or...

I have an irrigation project where I'm also running some laterals for seasonal hose bibs. I would like to keep the hose bibs potable and will use NSF rated poly. I'd also like to use fittings for the irrigation (of edibles) that will sustain over time and have lower risk of freeze damage, if...

Hey all, I am putting in some drip irrigation and hose bibs as part of a landscaping project, where we will have orchard, vegetable gardens, flower gardens, edible landscaping throughout, and aesthetic landscaping. I have a lot of technical and design questions. I probably won't get answers to...

Hoping you all can shed some very high level info on the topic of plumbed coffee makers for me. Admittedly, I'm not a coffee drinker, but my wife is. She doesn't have a plumbed coffee maker now, but as part of the remodel wants to be able to accommodate one in the future. She doesn't have one...

The questions: 1) Given an instantaneous 50A load (makeup air heater), what is a reasonable tripping threshold to target for an energy management system overseeing a 200A OCPD? If it was set to 150A, then the EMS would not benefit me because it is not providing extra capacity. At 160%, it is...

Hi, I am going through a capacity review in advance of some significant changes to electrical demands in the dwelling, and needing to confirm my service capacity, based on design... after that I can get into load calcs. I have a ticket in with the POCO, but they may only discuss up through the...

We are on septic and the condensing boiler we are looking to put in will neutralize the output. However, we also have a mature apple tree with fruit we eat, that is close-to, and likely drinks from the septic leach field. Any idea what neutralized boiler (natural gas) condensate contains and if...

Hi, I have a 25-year old Burnham 208NS-TEI5 that still appears to be burning cleanly and without known issues - however we have some complexities that may nudge us towards replacement with a higher efficiency boiler. On this series and age of a boiler, can I expect to still be able to get...

I'm posting here, instead of the electrical forum, as I think more plumbers would have gotten feedback on actual functional issues. TLDR: Wiring 5 toilets as part of the remodel. Has anyone seen practical issues or have safety concerns with either: a) putting a tank or tankless bidet seat on...