Water softener drain

[SuperPav]

Looking for a bit of practical advice...

 

When we did our understairs cupboard (where all the plumbing manifolds and water main etc. are) we put in a 28mm pipe to the outside of the house for a D2 discharge pipe. Things have changed and the UVC is now going elsewhere, so we sitll have the 28mm pipe.

 

I want to put a water softener (one of the twintec things), so assumed I can just use the 28mm pipe for the discharge. However, having got the unit, it says I need two separate drains for a discharge, and an overflow..

 

Given the only location to put it is in this ground floor cupboard which is the middle of the house and there is no soil/waste pipe other than the 28mm one, am I completely snookered, or can I put both of them into the 28mm pipe either directly or indirectly with separation etc.? Really want some soft water

[Nickfromwales]

4 hours ago, SuperPav said:

Looking for a bit of practical advice...

 

When we did our understairs cupboard (where all the plumbing manifolds and water main etc. are) we put in a 28mm pipe to the outside of the house for a D2 discharge pipe. Things have changed and the UVC is now going elsewhere, so we sitll have the 28mm pipe.

 

I want to put a water softener (one of the twintec things), so assumed I can just use the 28mm pipe for the discharge. However, having got the unit, it says I need two separate drains for a discharge, and an overflow..

 

Given the only location to put it is in this ground floor cupboard which is the middle of the house and there is no soil/waste pipe other than the 28mm one, am I completely snookered, or can I put both of them into the 28mm pipe either directly or indirectly with separation etc.? Really want some soft water

Your issue will be the rate of discharge when it’s regenerating. 
 

How long is the run of 28mm pipe, and where does it terminate? 
 

I’ll assume the worst and advise you make a ‘table’ for the softener as you’ll need to have some gravity fall for this to work reliably (or at all….). 
 

This is how I plumbed the last one in, where the pipe had to run some distance horizontally, caveat being that the traps were then much higher off the floor. The white square is the ‘softener stool’ that the client made for it to sit on. Left the underside open so bags of salt cubes could be stored under it to use up the space.

 

 

The two waterless traps have 21.5mm reducers in the top, and the 2 hoses off the unit just poke into those by about 70-80mm or so. 
 

FWIW, there are few instances where you can install the softener directly on to the floor. 

[-rick-]

Nice pipework.

 

Sorry this is off-topic, but what's going on here?