Hello,

From reading through other posts I have been able to determine my basement drains (house circa 1955) are bell trap drains with no trap below the basement slab. These bell traps have been drying up causing some odor that is getting on my last nerve (they don't even stay wet for a day's time - probably due to the furnace/warmth). From other posts, I have gathered that I have three choices:

1) Install new bell traps (not preferred as they are no longer up to code)
2) Install new p-traps below the slab
3) Cement over and be done with it

The only question I have is if I have to install new p-trabs below the slab then wouldn't that require breaking up a significant chunk of my basement? I am looking for a solution that is not going to cost me a small fortune because we are planning on eventually (5-10 years) doing some finishing work in the basement and would like to install a french drain at that time. However, I cannot live with this annoying smell in the mean time. My biggest concern about cementing them over is what would I do in the event of a hot water tank leak? Does any one have any thoughts for a temporary solution or an idea how much it would cost roughly to have a plumber install a p-trap below the floor level?

Thanks in advance.

The best answer is if you have the money, break up roughly a 2'x2' or 3'x3' area around the drain. They can attach on to another piece of pipe just downstream with a firmco. You usually don't have to do a large area, and if you don't do it right the first time, it always bites you in te end.

The worst thing that may happen, and this depends on the type of drainage pipe you have, is that it could be cracked further downstream. I would recommend having the checked via a camera, which shouldn't cost more the $200-$300. Even if you don't break up the floor, I would recommend have the camera work, especially if you plan work in the future. Always better to know what your getting in t

Hi Naralm and welcome to The Plumbing Page at AskMeHelpDesk.com
You do have more options the ones listed.
4- Install trap primers ** or**
5- Cement over the openings and install a heater pan in case of a tank leak.
How many bell traps, (see image) are we talking about? BIf it's only one I like Raythes solution of breaking up the cement and installing a regular floor drain. Good luck, Tom

If you need the drain, replace it. If not, fill with cement. If the HW heater is elevated you can put a pan under it and use a condensate pump for any leaks. You could also fill the trap with mineral oil or anti freeze, it won't evaporate but would keep the drain open if necessary.