NEED HELP! Air Admittance Valves
Lauren
5 years ago
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Comments (6)
weedmeister
5 years agoRelated Discussions
engines - 4 cycle - side valve (lhv) vs. over head valve (ohv)
Comments (7)Environmentally freindly. OHV/OHC are better. In Kalifornia flatheads already are gone due to not meeting Kalifornia regs. EPA is to follow suit in 2010 and are pushing to bump that time up to 2008. The inherently better combustion chamber design of OHV/OHC also means better fuel economy. Depending on your yard size this may all mean very little or could amount to real savings. Noise. Quality has more to do with it in this regard but flatheads being the low end engines they often have lower quality. Valve clearance on OHV and even more so on OHC are usually tighter so there is some slight reduction in valve train clatter. Just keep in mind that on most modern mowers there is more noise from the cutting blade moving air then from all other noise combined. If you buy a mower primarily for bagging with a high lift blade, that blade is going to make noise. Mulchers tend to be quieter, noticably. Some lower end flatheads, entry level Tecumseh's in particular, use a very basic muffler which goes against the norm in noise considerations. They're still decent engines and worth considering for smaller yards. If you only have 15-20 minutes of mowing to do why pay for something better.. The more yard you have, the longer it takes to mow it, the more you want to look for upgraded engines....See Morebizarre issue involving air admittance valve
Comments (7)update to bounce this down...since nobody seemed to have any ideas after another round of build up remover, flushing with many gallons of hot water (without AAV valve), rest of the buildup remover over night, then snaking it an hour ago, the AAV valve is finally willing to let it drain without gurgling and slowing down. In other words, no longer any positive pressure. (I didn't mention that after finishing that post, I did the "bag test" on the AAV pipe, and saw that there was positive pressure, indicating blockage) What did the "snake" catch after 12 feet? A wad of black cottony or linty material only as big as a wet cotton ball. That's all. I have no idea how that got down there as I don't use cotton balls and certainly don't put them in my dishwasher. The clothes washer drain is miles away figuratively. (other end of the house, 50' maybe, and closer to the main drain to the street, I can't believe it could have "floated up" against current?) There was much less black greasy goo this time, so it appears the build up remover was doing something. BTW my first auger was the ubiquitous black plastic jacketed drill powered ones. I remember now I bought one about 10 years ago and it also died after 5 minutes of use. The clutch mechanism is a joke. Yesterday I bought a cobra handcranked one, it did much better....See MoreHelp with air admittance valves
Comments (11)Thanks all--not sure how this old post got reignited! At any rate, we decided not to do anything about this until/unless we renovate the bathroom in the future, at which point we'll be moving plumbing anyway. This is indeed a vent just for our bathtub---we have a small house and the toilet and kitchen/bathroom sinks (the only other plumbing in the house) are separately vented, for whatever reason. We're also not too concerned about code since it's an old house and things are all over the board; the concern was really just making sure that we weren't damaging the house or ourselves in any way by having the tub vent into the attic....See Morehelp with push/pull backwash valve needed
Comments (5)Did you ever get your push pull valve taken care of? I suggest trying to rotate the valve as you work it up. The O'rings are probably swollen from D.E. or chemicals or there is debris causing the rings to not slide easily. I recommend opening and cleaning the filter grids and not using the push pull assembly to back wash. The push pull be left untouched or repaired with new O'ring seals. Pentair P/N# 263054 for new push pull valve O'ring/seal kit. Yes depending on bather load filters should be cleaned once to twice a year....See MoreLauren
5 years agokudzu9
5 years agoLauren
5 years agokudzu9
5 years agolast modified: 5 years ago
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