Saniflo question..

[silver50]

..Am I right it isn't strictly necessary to pump waste upwards any specific height from a macerator? It's only necessary to do this to give consideration to a run for the rest of the waste pipe?

Therefore if required, you can pretty much come out of the unit and then start run off at min 10mm/1M

I will actually need to get some rise from the unit first by going vertically, but probably only about 300/400mm.

Its a SANIVITE for a washing machine and kitchen sink. I'm just giving it some consideration as am concerned about getting the correct run on a 50mm pipe and also need to conceal the pipe behind a false wall. I have a building warrant for the 50mm pipe but it connects to an old kitchen sink waste which I've discovered is quite high above floor level therefore making a "run" harder.

Thanks

 

[Agile]

I dont see any need to go up before down.

Good of you to get the building warrant. I am sure many dont.

Tony

 

[silver50]

Thanks for reply

The building warrant has on it two (2 metre approx) 40mm waste pipes (kitchen sink and washing machine) joining a 50mm pipe for a run of about 4/5 metres (at roughly 4-500 above floor along a wall) but it connects to this old kitchen sink waste (old flat not easy to change this) which is quite high up hence possibly not a brilliant run on the pipe.

So, the saniflo idea is not on the warrant but I don't see an issue if it's fitted correctly. I feel it might actually be better in some ways. Having said that a plumber looked and did a few measurements yesterday and thinks he can get a decent enough run on it without saniflo. Therefore the only advantage would be concealing a slightly smaller pipe.

I need to decide but am interested to check this regarding a saniflo's need to be pumped upwards

 

[bolshy]

They don't need to be piped upwards, they can be if required. Avoid any 90° elbows, use slow bends only. If you use elbows, the unit will pack up in no time.

 

[silver50]

Many thanks

Here's a thing though and it probably scuppers my thoughts

This idea is for the main kitchen sink in a one bedroom ground floor flat. A friend of mine, an electrician said today he thinks the main kitchen sink in a property cannot use a saniflo!!

I thought it might be ok but I must admit I can see this easily being the case.

Any opinion welcomed. I'm at a crossroads with the whole thing and need to weigh things up

 

[muggles]

Sink is OK AFAIK but you can't put a sole toilet on a Saniflo

 

[silver50]

Sink is OK AFAIK but you can't put a sole toilet on a Saniflo

Ah right, thanks.

I wonder if I should get architect back down who did plans and seek his advice. Would say the connection to the outside stack (from the ancient kitchen waste pipe- which is there but is highish) has a bearing on use of a saniflo. If not using this old waste the connection would need to go quite high up into the outside stack via a speed fit or whatever it's called. Therefore a saniflo would be needed.

It's a dilemma. Harder to get a run and hide a big 50mm pipe along a bedroom wall and round a corner, or incorporate a saniflo to enable tidier installation. Probably need to core wall to take 32mm pipe out but maybe a lot neater.