hi diy, so, im building a diy shower, it will be used only for a year or so, so it doesn't have to be facy but functional. i need help with the drain layout. in this pic you see basic materials used but in next one ill explain the whole idea and doubt.you can see a :70x70cm shower tray (upside down)the siphon and some pvc for the tube.i need to connect the shower to a 30mm pvc drain but also i need to add a second connection for a washing machine drain, both the shower and the washing machine will share the same drain. next post.
ok so heres the deal:in the top you can see the general situation. i have my drain pipe (30mm pvc that is connected to a toilet drain), i need to go through a thin Wall and i need to connect the shower tray and a washing machine drain. so i have two ideas, depending on how do i orient the shower tray, you can see them in the pic. as you can see in idea 1 i would use a T, then a 90 elbow and a bit of pipe up to make the drain input for the washing machine.idea 1 and 2 are basically the same but in 2 i have very Little space to do it.. anyway, questions:1- Will a washing machine drain like this could cause conflicto with the shower siphon? , yes of course the drain pipe is going down but it aint a crazy angle. 2- as everything comes from a toilet sewer drain, is it Smart to put a wáter valve in the drain pipe (in Brown), just in case smell comes up, i would have a way to cut it.first time really doing this so any tips, warnings etc are welcomed. i hope the 30mm drain pipe is enough.. the other option would be making a second hole in the Wall and and conecting the washing machine drain firther down the drain line.. but one hole is better than 2.
>>2980416Recommended is 40mm for shower/washer alone or 50mm for combined. If your washing machine drains while showering both of them may back up so would not recommend. Also your not supposed to use a T like that but instead a Y connection in flow direction but not sure if that’s essential or just good practice
That is really small.Is this just going through a wall to exterior or it sounds like you're trying to die it into an existing larger toilet line?If it's going outside and short, whatever.If you're tying into an existing drain you're going to want a p trap at each fixture or you're gonna have sewer gas smell.Using such a small pipe you're also going to need a vent likely. That kit you posted looks like a tub-shower conversion drain kit, designed to be tied into an existing tub p trap that' is coming out of a slab and extend the line to a shower drain location.They're shit, last resort, mass remodel, crap
lmao also if you insist on using that illegal fitting instead of a wye, at least flip it around so the washer injection is directed down the pipe instead of up the drain
>>2980414As stated, a 30mm line is really small for a shower drain and it needs a P-trap. We need more info also.
>>2980414>30mmThat is rather small. Don't quote me,but i think the most comon siphon connection is 50mm in diameter. 30 i think is gonna cause you trouble with slow drainage.>>2980416Don't use a T fitting. Use a Y one so you don't have water backing up.
>>2981142>and it needs a P-trapi see one in ops pic
>>2981360?
>>2981420
>>2981438that's a drain assembly
>>2981563its a flask trap, same function as a p trap with almost no footprint
