how many bends??

radio1 · Posted: Thu Dec 21, 2006 10:36 pm Post Subject: how many bends??

Hi ,, I want to install a new bathroom i.e toilet, bath,and washhand basin,in the top of the house using 110mm plastic waste pipe for the toilet and 50mm pipe for waste sink water.
In order to do this I will need to fit 8 x 90 deg bends, A guy who lives near by told me I cant use any more then 3 x 90 deg bends in any 3 meter lengh of 110mm pipe ,,, is this right??

any help would be nice please.

regards

bster · Posted: Thu Dec 21, 2006 10:44 pm Post Subject:

if basin is'nt teeing into the shower or bath waste then 32mm will be fine (depending on length).

Which pipe are the bends going to be on?

__________________
I am newly qualified, so don't rely on my advice get a second opinion!!!

Agile · Posted: Thu Dec 21, 2006 10:57 pm Post Subject:

Read the question bster!

I think he is ( mostly ) talking about using a lot of elbows on the 110 mm !

I dont think there is any hard and fast rule apart from common sense which is only gained by experience of things which dont work! DIYers often sem to think that as long as you can string them together then they must work. The real world is different!

Tony

Blasphemous · Posted: Fri Dec 22, 2006 12:29 am Post Subject:

So are you saying you need to use Eight 90 Deg Bends in 3meters of pipework? What the hell are you trying to get the pipework around that requires that many bends?!?!?

Nige F · Posted: Fri Dec 22, 2006 9:37 am Post Subject:

long as your stools are soft you`ll be ok

radio1 · Posted: Fri Dec 22, 2006 6:00 pm Post Subject: will this help you??

OK the first bend will be from the toilet plus 500mm of 110 pipe, next bend throu the wall into the next room, when it goes throu this wall it needs to bend again as the main wall is about 400mm away, then it need to bend again to go around a pier which is 500mm x 300mm then it will run for about 2700mm then go round the other pier then throu the floor dropping to the ground . hope this will help a bit better.

regards

mike

Bahco · Posted: Fri Dec 22, 2006 6:10 pm Post Subject:

I think your only concern should be blockages which shouldn't happen if you get the correct fall.

Might want to consider rodding poinits in case

__________________
85 weeks without smoking!

holty · Posted: Fri Dec 22, 2006 8:35 pm Post Subject:

at least 2x 45degrees, for a 90, with rodding points if your attempting this.

libby lou lou · Posted: Fri Dec 22, 2006 9:21 pm Post Subject:

If it will go round the first bend without a problem, why does it not go round the 21st bend without a problem ? i'm not a plumber, but would like to know the reason. thanks

Nige F · Posted: Fri Dec 22, 2006 9:36 pm Post Subject:

well the principle that keeps a 1920`s Indian on the Wall of Death can cause a Richard 111 to stick

(Indian v twin motorcycle)

dan the man · Posted: Sat Dec 23, 2006 9:49 am Post Subject:

libby lou lou wrote:

If it will go round the first bend without a problem, why does it not go round the 21st bend without a problem ? i'm not a plumber, but would like to know the reason. thanks

just loses momentum. our turds dont have VTEC past a certain amount of bends

Agile · Posted: Sat Dec 23, 2006 10:56 am Post Subject:

The standard fall of 1:40 allows a certain flow velocity. Every change of direction will slow this down.

I have a recollection that you can reset the velocity by using a short vertical section if this is available within the space available.

Tony

Paul Barker · Posted: Sat Dec 23, 2006 1:14 pm Post Subject:

Get a s**t stick.

Bahco · Posted: Sat Dec 23, 2006 1:16 pm Post Subject:

Paul Barker wrote:

Get a s**t stick.

WHAT

__________________
85 weeks without smoking!

fitz1 · Posted: Sat Dec 23, 2006 4:22 pm Post Subject:

put it through te 500 by 300 wall.

__________________
If your not sure what your doing diy gas work is dangerous and illegal.