… Extend the pipes to the washing machine and sink traps. If not, you can connect their separate vents before they tie into the main vent stack. If you’re joining a washing machine and kitchen sink on the same drain, you may be able to vent them both with a single vent if they are close enough together. Properly vented drains allow the P-trap to do its job: prevent sewer gases from escaping into your home. Improperly vented drains can be sluggish and noisy, and can emit hazardous fumes. Does a washing machine drain need to be vented?Īll plumbing fixtures-including washing machines-must be vented.
#Air admittance valve problems with no main vent install#
If your washing machine is more than 4 feet from the vent stack, you should install a vent to make sure there’s enough room for the machine to drain properly. It prevents the possibility of a vacuum forming which could affect the water draining from your washing machine. How far can a vent be from a washing machine? At 20 DFU, this vent has a smaller drainage capacity than the other models, but 20 is actually plenty for any single bathroom, sink or washing machine. Use the Studor Maxi Vent on drainpipes from 3 to 4 inches. Can you use a studor vent on a washing machine?Ī Studor vent is simply a valve that allows air into drainpipes when suction is present. This one connects to a 2-inch trap, which drains into a 3-inch branch line. 30 How do you vent a bathroom with no outside access?Ĭan you use an air admittance valve for a washing machine?įitting easily inside a laundry box, a small AAV is a good choice for venting a washing machine.29 How do you vent a toilet without a vent?.28 Can you use a 2 inch vent on a toilet?.23 Can an air admittance valve failure?.21 How tall does a washer standpipe need to be?.19 Can a washer and toilet share the same drain?.18 How far can a vent pipe be from a drain?.17 Can a washer and sink share ap trap?.16 Can I hook up a washing machine to a kitchen sink?.14 How many plumbing vents can be tied together?.12 Does a washing machine need an air gap?.10 Can plumbing vents run horizontally?.8 Can I vent my plumbing through the wall?.4 Does a washing machine drain need to be vented?.3 How far can a vent be from a washing machine?.
2 Can you use a studor vent on a washing machine?.1 Can you use an air admittance valve for a washing machine?.Here is a little sketch of how I think the drainage is laid out. Would this be what you mean by venting the line? we actually removed the gully-hopper now, I was under the impression than the Durgo would take care of this instead? One thing to mention is that before the extension was built the underground pipework was a little different, basically from the manhole the pipe split into 2, one leg went directly to the WC, and the other had like a drain gully on the outside, and the sink and washine machine went into this, you could pour water into this from the outside. The upstairs bathroom seems all ok and this has a normal vent through the loft, but I know that the other end goes to the same manhole. The way the drain seems to run is from the cloackroom the soil pipe goes under the consevatory, joins into the kitchen sink pipe which then ends up in a manhole (i will confirm this when I lift the lamanite flooring to gain access to the manhole) I did the above a couple of times and now it runs clear all the time with the new AAV fitted like the problem has gone, I will buy a drain rod set and make sure they are clear, can you explain what you mean by a vent on the line?
Today on the kitchen sink waste I fitted a small 32mm AAV just loosley in the pipe and it flew out when I turned the tap on, I then put it in more securley waited for the sink to fill right up i.e blocked, then removed the AAV and the air was sucked in and the sink emptied straight away. Yes I moved the durgo higher up and achieved nothing like you say, I think that maybe the drain is somewhat blocked.
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