Waste for 100 flats?

[Chuck]

Have you considered the possibility that the developer is in financial trouble and is cutting costs on 'details' like detailed plans and senior engineers in the hope that the trades will know what to do?

To me, something smells very fishy about the scenario you've painted. Make sure you don't end up as a creditor if/when they go bust.

Also, I wouldn't rely on the "I was only following orders" defence (post 4) without checking with a lawyer firsr. You may have the moral high ground, but it'll still be a system that you installed that is not fit for its intended purposes, which is potentially going to lead to years of hassle.

 

[oz-plumber]

How are you employed on the job?
Are you considered the main contractor?

Not sure on your regs over there, but a 4 storey building over her requires a lot more venting requirements.
You need relief vents between each floor on buildings over 3 storeys.

It's a fair bit beyond the domestic plumber to know all the requirements.
Not beyond the capabilities of a domestic plumber to install as long as there are hydraulic plans.

I haven't done anything near 100 flats, mostly in the 20's, but there have always been spec'd plans to follow.

Whatever you do, make sure you're not going to be liable for the work done on the project.
If you're asking the questions on here, it sounds like you're out of your depth and you have concerns.

When things go wrong at a later date, hopefully your not the one someone is going to blame and point the finger at.

A project that size requires fully specified drawings, drawn by a consultant / hydraulic engineer.

 

[macka09]

How are you employed on the job?
Are you considered the main contractor?

Not sure on your regs over there, but a 4 storey building over her requires a lot more venting requirements.
You need relief vents between each floor on buildings over 3 storeys.

It's a fair bit beyond the domestic plumber to know all the requirements.
Not beyond the capabilities of a domestic plumber to install as long as there are hydraulic plans.

I haven't done anything near 100 flats, mostly in the 20's, but there have always been spec'd plans to follow.

Whatever you do, make sure you're not going to be liable for the work done on the project.
If you're asking the questions on here, it sounds like you're out of your depth and you have concerns.

When things go wrong at a later date, hopefully your not the one someone is going to blame and point the finger at.

A project that size requires fully specified drawings, drawn by a consultant / hydraulic engineer.

You are right. I am certainly out of my depth I’m there as a subcontracting plumber but there’s no mechanical drawings or specs to follow. I’ve been asked to pressure test this setup to 5bar via the manifolds. I’m not scared to say no and walk from the job. I was originally asked to help on the bathroom installs.

 

[ShaunCorbs]

Looks a nice set up

 

[macka09]

Looks a nice set up

It looks smart but no one has the answer for whether we can test from the bottom of the manifolds or whether we have to test each run from above. It’s upunor press on the manifolds but then converts to Hep2o.

 

[ShaunCorbs]

Test at manifold

 

[macka09]

Test at manifold

Even without the meters in place? It’s only a plastic cap in its place. It makes sense to remove the prv from the manifolds and connect there in my mind.

 

[ShaunCorbs]

Yes as there should be a rubber oring sealing them in as there designed for use with or without meters

Yes prvs need removing before test

 

[macka09]

Yes as there should be a rubber oring sealing them in as there designed for use with or without meters

Yes prvs need removing before test

Cheers mate. At least I’ve got some information to answer there demands. They want it tested to 5 bar for 24hrs. This may be my last day I think lol

 

[oz-plumber]

4 story building.
I would be testing to 5 bar at or from the top floor.
If the manifold is on the ground floor, you will need 2 - 3 bar to get the water to the top floor.
Just test the system to 10 bar and be done with it and cover yourself