I recently bought a mobile home park and have added some new homes, only to find out that there are p-traps in the incoming water pipes about four feet underground, and that some of these are filled with rocks. As the homes are already in place and hooked up to the water, my only option for clearing these seems to be to crawl under the homes (about 2 feet of room there) and try to dig down four feet, and then remove and clear the p-traps. Is there any other option but this, other than moving the homes again? Nothing I can snake down from inside the homes themselves? Thanks

When you say

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that there are p-traps in the incoming water pipes

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Yoiu're really mean the sewer line don't you?
Water services don't use "P traps.
Care to be a little more specific. Cheers. Tom

Several questions.

You said

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the incoming water pipes

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. Do you mean sewer pipes?

Why are the traps there?

Why are they underground?

How did they get filled with rock?

What do you mean by "rock"? Do you mean actual rock or do you mean gravel or do you mean dirt and debris?

Depending on what's there, I don't think you will clear with any kind of snake. You may be able to do something with a really strong shop vacuum. I don't mean the little roll around type shop vacuum, I mean the kind you see used by wood workers fixed to stationary machines. The kind that keeps sucking up my lathe tools.

Otherwise, cut the line under the trailer, cap the in ground portion, put a couple of ninety degree ells, go just underground and go out from underneath the trailer, dig down to the sewer line, put in a tee and connect you new line. If the trailer ever moves you can then look into digging up the trap.

Water is under pressure,therefore no gas.sewer is a gravity flow and any trap has unmoving water and will produce gas.the idea is to keep it moving away from the inside.I fixed broken pvc under my floor and went without the second p trap.bad mistake.it traps gases from all flow.who would have thought the washer could make that amount of stench

What the heck are you talking about granitec?

Clearly, you know absolutely nothing about plumbing at all as every single thing you stated is incorrect!

Please steer clear of this plumbing page... your input is not needed here! UGH!

Mark

I second Marks opinion. granitec needs to attend Plumbing Class 101 on Basic Plumbing,