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S

SloughLandlord

Hi,

I hope someone can offer some advice regarding a drainage problem. A bit of background: I own a ground floor flat, which I lived in between 1998 and 2004. During that time, I had no problems at all with the plumbing or the drainage.

In 2004, I moved out, and began renting out the flat. The current tenants have been there for a couple of years, and in those years they have complained about drainage problems repeatedly. The most common problem is that water is slow to drain from the bath, but they are also experiencing other problems, for example when they run their washing machine, the waste water from the washing machine is coming up the plughole into the bath.

I have used plungers and over-the-counter chemicals to try to help the situation, and I have asked the tenants to use unblocking chemicals regularly. I have called out two separate plumbers (one from a large company, one independent) on four separate occasions. The last plumber visited around a month ago, and already after only a month the tenants are complaining that it is worse than ever.

On each occasion, the plumber has used a combination of physical and chemical methods to remove blockages, but has said that the problem is caused by the waste pipe being too close to horizontal, and that it needs ripping out and replacing - something which can only really be done as part of a major renovation as it would require the entire bathroom and kitchen to be removed. Both plumbers have independently come to the same conclusion.

However, I'm not convinced that this is the whole story. I don't doubt that the waste pipe is more horizontal than it should be.... but I lived in the flat for 6 years without any trouble at all. So I'm sure that the problems of way the pipe is sitting are being aggravated by something else, perhaps a blockage somewhere else along the pipe.

Can someone please advise me on what can be done next? Clearly trying to remove the blockage using standard techniques is not working - but what else can I do to get the drainage system back to the way it was in 2004?

I'd welcome any ideas for techniques, etc, that I can research or companies that specialise in this kind of thing. I'd also welcome messages from professionals who might like to quote to fix the problem - but only if you are going to try something different to what the other plumbers have tried in the past. I'm tearing my hair out here trying to figure out what to do next, and my tenants are, quite understandably, getting upset and considering leaving.

Thanks!

Dean
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Plain and simple....its a blockage! Is it only the washing machine and the bath that are affected, toilets etc ok?
 
what is the hair length of the tennants?

I never have blocked anything, but as soon as any 'young lady friend' stays for longer than a month her long hair soon blocks the shower/bath/sink... I have no idea why she shoves so much hair down them, but she does.
 
The fact that two seperate pro's have said that the problem is a horizontal waste pipe, I'd suggest that it probably is.

I had a similar thing at rented property where the waste pipe was undersized, and the landlord said 'you're the third plumber to say that, but it never caused us a problem'

People are all different, some cook greasier foods, some lose lots of long hairs, some use too much washing powder, some flush baby wipes....whatever. You get the gist. It's probably your tenants aren't as careful as you...and a pipe with no fall is more likely to block, and will def drain slower.

The fact that the water from the washing machine comes out the bath waste shows that the plumbing is without doubt wrong...but if you can't have it altered, you'll have to keep paying to have it cleared. Sorry!
 
Last edited:
been out this afternoon to look at exact same problem with 40mm waste under floor of flat running 8 meters serving w/m and sink.

2 options

chemical flush and rake out, periodically. (been done twice so far).

or

run a new 50mm pipe through side wall allong outside of building for 11meters.
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