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Rolling_on_the_river t1_ixzz9am wrote

Reply to comment by RainStorm13 in Plumbing back ups in two spots. by 403carpenter

Mind if I ask a plumbing question?

Under my basement I have a bend that frequently gets plugged.

I have to flush a lot of water from inside and also from outside (I have a big pipe under my porch).

Is there anyway to prevent this?

I notice the blockage when I flush my toilet and the drain in my washingroom starts to bubble.

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RainStorm13 t1_iy01i8d wrote

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I assume your house is older and the drain within the foundation is possibly cast iron?

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Rolling_on_the_river t1_iy060bb wrote

Yes, it's old and it's very probable that it's cast iron.

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RainStorm13 t1_iy0b3g2 wrote

If so, the issue may just be the low flow toilets these days. When the cast iron drains were installed, toilets were 3+ gallons per flush. So there was a lot more water per flush. Are your toilets low flow? Modern toilets are limited by law up to 1.6 gallons per flush.

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Rolling_on_the_river t1_iy0gjuy wrote

I am unsure of this, I am outside of the US. It's clear when there is a blockage that the flow of the flush is worse.

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RainStorm13 t1_iy0gpu4 wrote

Correct. When there is a blockage, the toilet will not flush correctly.

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Rolling_on_the_river t1_iy2boa1 wrote

I have reasons to believe the problem lies elsewhere.

In my house I have this pipe that's connected to the system. This pipe is capped with some sort of de-pressuriser. This sometimes smells like sewage. Could this be the culprit?

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