Reflecting on yesterdays "entertainment"
My younger boy's downstairs toilet - ever so "posh", now their extension is finished they've got one upstairs and one downstairs! - I have been noticing for a few weeks now, when out there childminding, that the downstairs one has a slow overflow happening (it's got an internal overflow which directs the overflow water into the bowl via the syphon.)
He's very lazy about doing anything when these sort of things happen so I was just waiting for him to mention it and ask me what to do. Anyway I was surprised when he rang me last friday to say "Dad, there's water dripping on the floor from the loo". That surprised me as I couldn't work out how the internal overflow could be causing it so asked him to go and look at it and tell me exactly where the water is coming from. A few minutes later, obviously with his mobile phone in one hand, he was telling me "Dad, it's not leaking now". Very strange? Ok, flush it and see if it leaks? (with me praying it's not the soil pipe leaking) "Oh yes, it's leaking now"! Ok, exactly where is the water coming from? "The pipe coming out the bottom of the water tank" - It's not a close coupled cistern. Ok put some old towels on the floor and I'll bring my tools on Tuesday (a childminding day) and just use the upstairs loo.
When I got there it was indeed the wedge shaped rubber washer on the cistern pipe which had just perished and got hard and I had a new one in my tool box so that took just minutes to fix. However the cistern was still overflowing so I actually decided to sort that first. Unbelievably the tiler had tiled over the edge of the cistern lid - DOH! - so I had to break away the edge of the tiles along the top of the cistern lid before I could remove it. Sure enough, initial observation was that the ballcock valve was leaking. That's Ok, I always keep spare washers. luckily - or should it be unluckily? - there's a gate valve on the supply pipe. I really don't like gate valves used in this way because they often won't completely stop the flow I much prefer those wee ball valves you turn with a screwdriver. So. with the gate valve closed? I started to get a grip on the big plastic nut that holds the ballcock together, but hold on, there's water coming out between the nut and the plastic fitting - and I haven't started to undo it yet! I rechecked the gate valve and it's screwed fully in but obviously not completely stopping the water flow, still, it'll only be a trickle, I'll just live with it. Ah well, better have a look inside it and see what I can see. The rubber "shut off" washer was in poor condition, having gone hard with age, but not totally "goosed" so I dismantled all the component parts to clean them up before fitting the new washer when I noticed a lot of putty around the fitting. Very strange, why? Anyone familiar with these fittings will know there is a swapable nozzle inside depending on whether the supply is gravity (low pressure) fed or mains. The gravity feed nozzle is often white and the mains (high pressure) is red. I fitted this toilet several years ago when the house had a gravity tank and used a white nozzle. But the new boiler, fitted during the extension construction, is a Combi so the whole house is on mains now. What had happened was that the plumber had, quite correctly, removed the white nozzle and fitted a red one in it's place - presumably before the tiler got going? - but he'd put the rubber O ring seal on the wrong side of the nozzle fitting thus guaranteeing that it would leak. Not only that but he must have observed that it was leaking, taken it to pieces and packed it with putty, still with the O ring misplaced, to stop it back leaking. This must have worked at the time he did it but the water pressure must have slowly moved the soft putty until it leaked again which was why he had the overflow discharge. Anyway, all sorted now. Cleaned out all the gungy putty. Installed the O ring in it's correct, and very obvious location. Fitted a new ballcock washer to replace the hardened one and finished up fitting the new soft rubber taper washer to the flush pipe. All good! I'll not mention the swear words uttered when the gland on the gate valve started leaking when I turned the supply back on!
I'm just hoping, please dear God, that it was the apprentice who did this and that he had nothing to do with the installation of the new Combi boiler and it's extensive replumb!