Replace a toilet - how much, should I get a plumber?
Replace a toilet - how much, should I get a plumber?
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Discussion

007singh

Original Poster:

268 posts

191 months

Wednesday 6th October 2010
quotequote all
So I need to replace the toilet in a house that I am about to rent. Its a close coupled toilet, but it has a slight leak from the cistern base, and it looks pretty tired. I figured I might as well replace it.

Questions I have are:

1) Is it simple DIY job that I can do myself (fairly competent DIYer, just not done much plumbing)
2) Should I get a plumber to do it (I supply a toilet)
3) If I get a plumber, how long would it take and how much might this cost?
4) What considerations do I neeed to take into account to make the replacement easy as possible?

Thanks for all the help, oh and if anyone knows or is a plumber local to Weybridge/Addlestone area, I might have a job for you! smile

CaptainSlow

13,179 posts

235 months

Wednesday 6th October 2010
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If it is a straight forward swap with no alterations to the soil pipe then it is quite easy. I did mine. It wouldn't take a plumber long though so maybe £50-£100?

pimpin gimp

3,318 posts

223 months

Wednesday 6th October 2010
quotequote all
I replaced the syphon flap valve on a close coupled toilet the other month, it took about half an hour (including using a tiny cup to remove all the water from the cistern!) and you just need to undo the water feed pipe and then the bolt holding the cistern to the pan pretty much - when doing so I also replaced the seal between the pan and cistern which would presumably fix your leak.

Just buy a seal from B&Q and give it a go yourself, it's really not that hard and it'll save you plenty.

dave_s13

13,979 posts

292 months

Wednesday 6th October 2010
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007singh said:
....in a house that I am about to rent. ..
Shouldn't your landlord sort it??

Flying machine

1,243 posts

199 months

Wednesday 6th October 2010
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Simple job, you say that you're ok when it comes to DIY - get on with it then I'd say. I changed one over in my house earlier this year. If you know a good plumber who will only charge you a small amount then it may be worth it if you just dont fancy it. From what I encountered I'd suggest that you dont bother trying to salvage any fittings from the old system especially if it's a little tired (just in case you were considering it).

BoRED S2upid

20,978 posts

263 months

Wednesday 6th October 2010
quotequote all
I did mine those flexi pipes are amazing. However old toilet = big cistern new eco flush toilet things = far smaller cistern and a 4 inch gap to the wall had to make a little shelf behind the cistern to sort of box it in if that makes sense.

m4ckg

625 posts

214 months

Wednesday 6th October 2010
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dave_s13 said:
007singh said:
....in a house that I am about to rent. ..
Shouldn't your landlord sort it??
it might be a house he is going to rent out

Simpo Two

91,323 posts

288 months

Wednesday 6th October 2010
quotequote all
'Let' in other words.

Landlord lets it, tenant rents it.

007singh

Original Poster:

268 posts

191 months

Wednesday 6th October 2010
quotequote all
Thakns for the input guys.

To clarify:

It is a house I am about to rent out (i.e. I am the landlord)

In regards to the siphon, I replaced that a few months back, and the problem has come from the donut washer between the cistern and the bowl. The new one was too thick, and hence when I fitted it, the wall screws for the cistern did not line up, so would need new holes in the wall, and the plumbing extended (water feed etc).

So I decided to use the old donut washer, which was a bad mistake, as although it fits, and the screws line up, the bugger leaks slightly. I think the problem actaully is a poor design/quality toilet.

The link between the cistern and the bowl is a plastic fitting (screwed into the bowl), and i think it flexes slightly (maybe due to age, or a poor fitting cistern on the wall), hence creates an opening due to the flex.

This diagram may help:



Beige items are the cistern and bowl
Red is the plastic connection between the cistern and bowl
Blue is the donut washer (the point at which it leaks).

I was thinking just replace the whole thing (since it may be plastic connection causing the issue), but now maybe I should try with a new washer and fitting the cistern a little better, and using flexible hoses for the water feed if I need to.

Again, advice please..... should I just throw £50 at it and get a plumber to sort it?

oOTomOo

594 posts

214 months

Wednesday 6th October 2010
quotequote all
They usually have a rubber washer both sides.. Where the pipe goes into the bottom of the cistern, inside the cistern there will be a big plastic nut. tighten this up...

ETA or belts and braces, get 2 new washers (maybe even some silicone if you really want to go to town) then tighten it up.

Edited by oOTomOo on Wednesday 6th October 14:48

007singh

Original Poster:

268 posts

191 months

Wednesday 6th October 2010
quotequote all
Thanks mate - my quick diagram forgot to show that! lol.

I could try a new donut on the cistern side, tighten the nut again, and fix with new screw holes in the wall and see if that solves it. If it works, great, else might just replace the whole thing - its a PITA having to worry about it causing a problem later on, and then having to go and sort it out.

Only thing now then is if I fit a new donut washer, it will raise the cistern which will mean my water feed no longer reaches - is this easily resolved?

oOTomOo

594 posts

214 months

Wednesday 6th October 2010
quotequote all
Flexi pipe ftw!

ETA: depending on how securely the copper pipe is attached to the wall it will move around a few cm or so when disconnected from the cistern. it probably will fit.

If not while you're out shopping for washers get some pipe cutters and some compression fitting flexi pipe. Job jobbed.

Edited by oOTomOo on Wednesday 6th October 14:56

Ricky_M

6,618 posts

242 months

Wednesday 6th October 2010
quotequote all
I'd say have a go yourself, but I'm a plumber so its easy for me to say that.

The hardest bit will be connecting the cold water to it. The waste outlets are usually in the same positions if not there are many types of pan connectors avaiable.

Some tips, when screwing the cistern to the wall use brass screws and rubber tap washers. Brass won't corrode with water and the washers will stop the screws damaging the china.

Also use proper brass pan screws to fix the pan to the floor.

Ferg

15,242 posts

280 months

Wednesday 6th October 2010
quotequote all
That's not actually a close-coupled toilet. It's more like a low-level, although it may be Ideal Standard Space.
There isn't any need for a rubber washer OUTSIDE the cistern, it should be inside. Very occasionaly there may be a fibre one on the outside, but usually the nut bears directly on the china. Sometimes the inside of the cistern is a little rough. We normally use plumbers mait on it.

Gingerbread Man

9,173 posts

236 months

Wednesday 6th October 2010
quotequote all
Ferg said:
That's not actually a close-coupled toilet. It's more like a low-level.
That was my first thoughts. I saw a toilet the other day that seemed to have a plastic 90' section that converted a low level to a close couple.

That's what the diagram made me think of.

Anyway......what type of donut are you using? You can get quite solid ones - rubber, or foam ones that compress more easily.

Ferg

15,242 posts

280 months

Wednesday 6th October 2010
quotequote all
Gingerbread Man said:
Ferg said:
That's not actually a close-coupled toilet. It's more like a low-level.
That was my first thoughts. I saw a toilet the other day that seemed to have a plastic 90' section that converted a low level to a close couple.

That's what the diagram made me think of.

Anyway......what type of donut are you using? You can get quite solid ones - rubber, or foam ones that compress more easily.
Actually, Twyfords used to do a pan like that with a sort of converting bend thing..

007singh

Original Poster:

268 posts

191 months

Wednesday 6th October 2010
quotequote all
Guys, I think you may have hit the nail on the head here. It is a Twyfords (approx 12 years old), and the washer is definately on the outside of the cistern. The one in the replacent ciphon kit was a firm rubber one (that caused the cistern to lift higher than originaly setup), but the one on it currently (the old one) is more a foam type one.

I might try to get another foam one. But I cannot see how it would fit inside.

Anyone know what the plastic connection thing is called? Could it need to be replaced? Can it be replaced?

The Lukas

2,773 posts

217 months

Thursday 7th October 2010
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Can you take a picture of this plastic fitting? I really don't know what you are talking about hehe as there should be no 'connection' between the pan and the cistern besides the donut washer if it's a close couple unit.

The only thing I can think of what it may be is the thing that is screwed to the bottom on the cistern via the siphon with two screw holes that hold the cistern to the pan.

007singh

Original Poster:

268 posts

191 months

Thursday 7th October 2010
quotequote all
I think we just described that its actually a low level, and not close coupled.

Ferg

15,242 posts

280 months

Thursday 7th October 2010
quotequote all
No. You're right it IS a close coupled toilet, it's just an unusual one. You have a bit that bolts onto the rear of the pan which converts it.

Make sure the syphon-to-cistern joint is good first, then put a new donut washer on. You MIGHT like to puts ome plumbers mait on either side of the washer, OR silicone. Plumbers Mait is best because you don't have to worry about drying time or disturbing the joint later.