I have read through all of the threads about septic odor indoors and I cannot figure out what to do. I have a strong septic odor in my bathroom (and basement) after it rains. I also have a gurgling kitchen drain (constant). It started with a clogged septic system this summer. The tank and area around the tank were flooded. After clearing the clog, BAM, the smell in the bathroom started. Whenever it rains, it smells for a day or so and then goes away. The septic company has been to the house twice and used a camera to check the input pipe and output pipe and both are fine. We ran water and it did drain (although it was a sunny day). My home is 200 years old, but I have lived here for 7 years and never had this problem before. I have an unvented sink in the bathroom. I have replaced the wax ring on the toilet, but that did not help. When I run the shower after it rains, the smell is very strong (the shower is properly vented). There is no smell in the upstairs bathroom (properly vented). This morning my washer locked because it would not drain. I snaked all the way back to the main output of the house and a there was no clog. When I put the washer hose directly to the floor drain, then the washer drained. Help!!! Melinda in VT

We are installing three tanks for a greywater system. Each tank has an interior diameter of 36" and outside of 42". We need covers. I have found manhole covers but they stop at 36". Also of course very expensive. I am trying to figure out what else might work. We just need to be able to lift it (or put an access hole in it), and of course be able to walk on it safely. Does anyone have any ideas as to what might work? I have also wondered if I could get away with something bigger that wasn't round. Thanks for your help!