ᐅ Plumbing rough-in installation defective?

Created on: 12 Jul 2018 07:14
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Haribobo
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Haribobo
12 Jul 2018 07:14
Two white metal frames for sanitary installation with pipes, hoses, and cables in a construction environment.

Base structure with open drain pipes, PVC pipes, black hoses, and metal frame.

Good morning.
We are currently building a prefab house with Allkauf Haus and have the Freetime package.
On Monday, the rough-in plumbing was installed and completed yesterday afternoon.
Unfortunately, all the pipes were laid exactly where a drywall partition for the shower needs to be. I wasn’t allowed to oversee this earlier because the company did not want me to. Someone mentioned that the pipes were incorrectly installed.
Their comment was:
I would also criticize the installation of the wastewater pipe. The 87-degree bends on the floor for the washbasins are completely wrong. This is not standard practice. The reducer for the shower is also installed the wrong way around. Was this done by a professional company? If so, that’s disappointing!

Can anyone confirm these statements? If so, I can address this this afternoon!

Best regards,
Sven
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matte
12 Jul 2018 07:52
HilfeHilfe schrieb:
......

Wow, could you please stop with comments like that? It really doesn’t help anyone. If you don’t have anything constructive to say, please just save yourself from posting stuff like this...
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Chilledkroete
12 Jul 2018 09:10
For DN50, 90° branches are not critical.

However, soundproofing is an issue:

Are these Skolan dB drain pipes? If so, the expensive soundproofing is compromised with this installation: The pipe must be completely decoupled with insulation. This means that the red insulation must also be placed between the black nail strips.

The connection for the shower is installed the wrong way; the opening must always be on top for reducers, although this cannot always be followed everywhere...
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Domski
12 Jul 2018 09:17
Where exactly do you fasten the installation frames securely? Fixing them on the drywall on the shower side won’t work, and the wood above only helps prevent it from tipping over for now.

How much space do you have for your shower drywall construction plus tiling, and how much do you need?
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Haribobo
12 Jul 2018 09:25
Chilledkroete schrieb:
For DN50 pipes, 90° branches are not critical.

However, the issue here is sound insulation:

Are these Skolan dB drain pipes? If so, the costly soundproofing will be negated by this setup: the pipe must be fully decoupled with insulation. That means the red insulation must also be placed between the black nail strips.

The connection for the shower is installed incorrectly; the opening must always be on top at reductions, although this is not always possible everywhere...

Honestly, I don’t know what type of pipes these are... I have no expertise in this area.
Domski schrieb:
Where are you properly securing the installation frames? Fixing them to the drywall on the shower side won’t work, and the wood above only helps prevent it from tipping over temporarily.

How much space do you have for your shower drywall and tile layers, and how much do you need?

Where the pipes lie on the floor, a drywall partition 10cm (4 inches) thick needs to be installed. Unfortunately, this isn’t possible at the moment because the pipes and everything are in the way, and I don’t have space for it. The pipes are placed on the 1-meter (3 feet 3 inches) boundary, and our WEDI element is exactly that width.
If I move the drywall partition further to the left next to the pipes, I will only have 80cm (31.5 inches) left, which is significantly too little.
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Haribobo
12 Jul 2018 09:43
Does anyone by chance have a picture showing how the pipe in the shower should be installed correctly?