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@Filter30 - sorry I wasn't clear. The pump itself is on a thin, flat slab that is on top of the gravel. Interesting hypothesis about the float arm. Is that how they work?

@Reach4: yes the incoming pipe takes water from around the perimeter of the basement. I'm trying to determine if I can have an M53 Zoeller installed in my sump pump basin because its depth is only 17". Zoeller seems pretty insistent that it has to be at least 22" deep. (There is some gravel in...

Thanks, Reach4 for looking at it. Can you explain why it is okay for the inlet pipe to be below the high-water mark?

From the diagram on the installation instructions, the "on" level looks to be a couple of inches below the top of the pump. However when I spoke to a customer service rep, he first said that it is 7.25" from the bottom of the pump, but then he said that the water will basically come to the top...

Thank you, John. My concern is that unlike the 6" high Little Giant pump that I currently have installed (as seen in the attached photo) the Zoeller pump that the waterproofing company is likely to install to replace it will be more than 10 inches in height (maybe even more than 13" high.) My...

I live in the Northeast and have only very recently educated myself (somewhat) about sump pumps despite the fact that we had one installed in our home 25 years ago. I was trying to determine what (if anything) may be wrong with our Little Giant because it seemed like the water was rising higher...

@WorthFlorida: Thank you. It is a vent damper. I have the paperwork on that. The model# is MI-04-SPRK-WPC.

Thanks for the responses. The photos must not be very good, because there definitely is a slope. As far as all the piping needing to get warmed up to get a draft going: It must have been warm because the HW had been on for quite a while alone (for 2 showers worth) and then very soon afterwards...

Sorry for the long post, but I don’t want to leave anything important out. Over the weekend, I noticed that our hot water heater back drafts when the furnace is on at the same time. They both vent together to the chimney. Please see attached pictures. The WH (40 gallon – 40,000BTU input) is 4...

A plumber came and snaked past the point where the kitchen sink and powder room sink drains meet and connect to the 4" cast iron pipe. We wanted him to go thru the powder room sink because that hasn't been snaked in the 25 years we've lived in the house as opposed to the kitchen which was snaked...

thx. No tub

Thanks for all your responses. I want to be sure that I understand correctly. When you say, "But it is probably soft enough that a small snake can push right thru" do you mean that a small snake would not be effective because the material would still be hanging around inside the pipe even after...

Well yes. I had thought the water at the very least had to be hot. And I guess I'm more wondering how the blockage forms again when I am extremely careful with what goes down that sink: no fat or grease or anything but the smallest food particles. I have a very fine strainer in the sink.

Thanks. But how does the big flood down the kitchen drain open up part of the partial blockage? The temporary fix can last for weeks before it slowly gets bad again.

Thank you for your post. I would expect the CI is original. Several years ago, we were experiencing gurgling in our 2nd floor sink when the toilet was flushed when it got less than 15 degrees outside (thankfully not a too common occurrence where I live!). A plumber went on the roof to send a...

Thank you. Yes I understand. I just thought that perhaps the fact that it does to that could be a clue as to what is causing the problem.

Okay. Thank you. So there is no way to look down the pop up assembly to determine how high the water level is?

Can anyone think of why quickly emptying gallons of water down the kitchen sink makes a temporary fix to my problem?

Thank you. Can you give more specific advice?

I'm afraid that I really do not understand your 2nd suggestion. Could you possibly explain the purpose of doing this?