Hole in soil pipe, would this cause a slow flush?

[Hugh Jaleak]

If you go down the Tape route, wear gloves and throw them away when you're done. Tape has excellent waterproofing qualities but is filthy stuff. One of my first jobs starting out as an Apprentice was wrapping 2" Steel Gas pipes with it. No Gloves, no running water on the job!

Things have changed for the better thankfully!

 

[AP3]

Well the epoxy repair seems to be holding up, but the toilet is still blocked. I'm going to get a better plunger, and if that doesn't work, it looks like I'm going to need a plumber.

 

[Hugh Jaleak]

Are you confident to take the Toilet out? (Will need to replace the Pan Connector when refitting.) Secondly, do you use Rim Block toilet fresheners? Any chance one is stuck in the U bend?

 

[Daveydub]

I'm going to get a better plunger,

Did you try the mop in a plastic bag thing? Pan should have plenty of water in for this.

 

[AP3]

I haven't got the type of mop that I've seen used for that trick. No rim block things. All that goes down that toilet is pee and bleach.

It's a hidden cistern toilet, with the cistern in the eaves, otherwise I'll pull it out and rod the soil pipe myself.

One interesting development is that now after it fills and (very) slowly drains away, the water level in the bowl is dropping below the usual level and "burping"....!

 

[robinbanks]

That hole in the pipe will be useful. Buy a floplast strap boss from Screfix

drill a 40mm hole in the pipe (encompassing the damage) like this (not central, offset to be "round the bend")

and use it as a spy hole while a helper flushes the toilet

I expect you'll not see a rush of water past the hole, in wish case it means the blockage is upstream of it

pinch the end of a garden hose down into a u shape and put a trimmed cable tie or electrical tape round it

(to make more of a spray nozzle- reason I recommend this rather than a big hose lock nozzle or whatever is that this can go round corners and doesn't get snagged, or if it does you can just yank it and pull it back. Anything bigger or more substantial may become wedged or lost in the sewer system or not go round corners. This way the most you lose is a cable tie),

feed it into the spy hole and push it upstream, have a helper turn the hose on then helper watch the toilet bowl while you continue to push, wriggle and jiggle the hose upstream. If you start getting paper etc passing you you're succeeding in breaking up the blockage.

You can also do the same trick from the toilet end, "jetting" the drain

When you're done, take your strap boss and line with a bead of silicone, insecure it in place with the strap. If the strap doesn't reach, cut the teeth ends off, drill holes in it and use a meaty cable tie through the two holes to secure the strap. Block the hole in the rubber bung with anything that's solid and 32 or 40mm and stick it in

You have essentially turned your broken bend into a bend with rodding access:

For much less than what one of these babies costs

(But if you want to buy one and cut the access out and glue it into your pipe, go for it

Soil pipework is not under pressure and having an access on a bend like this is often helpful

 

[AP3]

Thanks for the very detailed reply. The new plunger hasn't worked, and this is beginning to look quite a bit outside of my DIY comfort zone, so I'll probably have to call a plumber on Monday.

The hole is now sealed, but water was clearly getting to it, as water escaped from it during my initial plunging and "pour a bucket of water from height" escapades.