Pigletjohn, have I been mugged?

[Mordirig]

I had a handy man install my dishwasher about 3 weeks ago, he connected the grey waste pipe to the same waste pipe as the washing machine.
He added a white piece of plumbers pipe to this so there are 2 ends with one waste connected pipe for each machine, the dishwasher one is set slightly lower and the water comes out at the end of the cycle every now and then, not every time so I'm not sure what to do?
I paid him £200 for this!
My Step FIL said it should have been connected to the sink waste pipe and it should be Flush instead of just the loose end anchored down the pipe it is at the moment.
Any advice on how we can rectify this? I don't want the 'handy man' back in my house tbh and we are on a tight budget this month.

Yes, you were mugged. I can't quite envisage it myself, a photo would be good and if you could explain where the leak is coming from? I would have changed out your sink waste trap probably, for one that was intended to have two inlets for d/washer and w/machine. But you can just adapt them.

I'll fit a dishwasher for 100 btw, I'm totally skint and did not realise I could be milking my mad DIY skillz. I also spotted in the Daily Fail that some bloke is charging 30 an hour to build Ikea furniture. I'll do it for 20.

I thought I was had,, fucker!

I will try and post a picture later when DH moves the Washing machine.
Sounds like I could probably do it myself tbh with a bit of youtube tutorial?

Put up a photo. Irrespective of how its been plumber, £200 to plumb a dishwasher is robbery. We charge £75 for a built in dishwasher.

Yes, it's totally DIY-able, even by a total newbie. Things to remember are to check and double check that nothing is seeping/leaking at the connections for the water and preferably run an entire cycle while you can still see everything to check. Make sure you don't lose the rubber washers on the inlet hose - I did that once and it dripped for months before I spotted it. Make sure you screw carefully on, and don't foul the screw thread (like my mum did) on the connectors as well. Waste pipes are basically easier, just good to make sure that the washing machine is going to flood the dishwasher when it pumps out etc etc etc. Buying a standard two inlet trap should avoid that possibility but look around on YouTube, or the Readers Digest guide to DIY is online I think.

I can't believe he had the brass balls to charge that much. Maybe 150 if you needed a new water supply putting in nicely (not with a crappy screw in connector), but not just for connecting it up. My dishwasher plumbing is a thing of pure beauty. We all stopped and admired it for a bit when we were fitting the kitchen.

£200 to install a dishwasher

SunnyRandall My thoughts exactly. I'm sitting on a goldmine here.
When Dh plummed our dishwasher at the old house, it went to the sink drain. Never had a leak.

you probably have a stand pipe for the waste. It is a perfectly acceptable method, and it is OK to connect two appliances to one stand pipe, though one each is slightly preferable. It is an alternative to connecting to the sink waste, and in my view preferable. It should look something like this. The pipe should be at least 18" high above the waste pipe it connects to, and have a trap or bend at the bottom.

If water comes out of the lower connection, it is possible that the flow is obstructed, perhaps by grease or soap deposits, or that the pipe layout is not neat. for example there is a horizontal run with no fall to let the water flow away quickly. Or the lower pipe may have been poked into the pipe, instead of using a Y connector, so that the hose obstructs the pipe.

Any competent plumber would be able to make a good job of it, for an hour or so's labour. The best way to find a good plumber is to ask around friends and neighbours, not to use websites or yellow pages. For some reason parish magazines are also a good source.

btw an appliance hose in a standpipe should be a loose fit, not sealed, so that no pressure or suction can occur in the pipe.

OK, pictures: the grey one on the right is the dishwasher pipe and the pipe going in just higher up is the washing machine.

I have tried to push the dishwasher pipe down as there is too much bend in the pipe showing compared to the washing machine but it won't go any further.

The design is not fundamentally wrong, but the height of the standpipes looks insufficient. The waste hoses only need to go into it by a few inches (may be specified in the appliance installation instructions). The U shape at the top is done by a plastic form, it can be unclipped and moved along the flexible hose to increase or decrease the length of projecting hose.

There may also be an obstruction, possibly in the trap (bend) at the bottom of the standpipe, especially if dirty sink water flows by it.

The position of the electrical socket is very poor.

I can't for the life of me see how that was £200 worth.

£200

Darn, that's really annoying. I guess you will have to chalk this up to experience and make sure you are more careful in future. My mum agreed to having some trees 'trimmed' the other day without agreeing the cost . Needless to say it didn't go well.

I am a bit obsessed with researching everything to death and trying to fix things with some help from YouTube. I get professionals in when needed though.

John Lewis charge 25.

My dishwasher is integrated and was actually quite tricky to install. It was hard to get the door and the door panel weighted properly so it opened smoothly. The springs supplied with the dishwasher were not strong enough so we had to order stronger ones. I think my builders swore a bit. Maybe, your plumber was hedging his bets and being very over cautions with his costs

the John Lewis £25 will be to connect the pipes from the new appliance into existing plumbing, typically when an old appliance has been removed and everything is already working and in the right place.

Thank you for everyone's replies.
How do I rectify this? Take out the white pipe that the waste pipe goes into and get a longer one?
It has some silicon around the join will it be easy to remove?

And what do I do with the socket? It won't move much, DH said gaffer tape it to the side high up?

silicon round the joint?
did the plumber arrive on a horse, and wear a Stetson?

it looks like it is probably the sort that should be fixed with push-fit connectors but there is another type that uses solvent cement (special plastic glue) . Neither should leak and neither should have silicon to hide the bodge. There will probably be a makers name and material embossed down the side of the pipe. Handle it and see if it feels like hard glossy plastic, like an old telephone, or has a greasy feel like a non-stick pan. At the plumbers merchant you will notice the feel of the two alternatives so you can choose the right one. Preferably use the same brand.

A cemented joint is permanent, a push-fit can be pulled apart. An equivalent has big hand-nuts to compress on assembly, than can be unscrewed if needed.

The socket should be fixed to a permanent part of the structure of the house, such as a wall, not to a piece of furniture such as a kitchen unit. Electrical fittings must be suitable for how they are used, so it should not be in a place where it can be splashed or dripped on. Sockets should be screwed into place, not held with sticky tape.

p.s.

it looks like you could undo the big knurled nut where it joins the trap, then take it (with the nut) to the plumbers merchant, and ask for a standpipe with a compression connector the same as the existing nut.

They will probably have an adaptor or a Y-shaped fitting suitable for two appliance waste hoses into one standpipe. A standpipe should always be open to the air at the top so that it cannot become pressurised or syphon.

Also please measure the size of the pipe that the trap connects to. It looks to me like a smaller size than the 40mm trap. If so, this will obstruct flow.

Otherwise, ask around friends and neighbours for a recommended local plumber, and try to look at a sample of his work.

I am eternally grateful PJ, thank you.
Will update at the weekend when it's been done.