25-11-2016, 10:16 AM
Our company were main agents for all the macerators sold in the UK, fitted to many to count and had no problems, re-installed far too many badly fitted by others.
Golden rules,
1) Discharge pipe should go as high as necessary as near to the unit as possible.
2) From that high point on it should fall all the way to the soil connection without any dips or rises.
3) If 22mm copper is used, deburr inside of pipe cut completely.
4) If using 21.5mm plastic ( prefered ) use solvent weld only and ensure no excess in fittings.
5) No elbows anywhere, use bends only. We used Marley 2 piece adjustable o/flow bends everywhere. (other makes available etc. Use minimum number of fittings possible.
6) If run is overly long, consider using Blue polyE pipe and compression fittings, but properly supported. Mark it as "soil" at regular intervals. Or even 32mm pipe ***but not on the rising section***
7) Tap into soil stacks with proper strap on bosses and reducer, even on cast iron and pitch fibre, provides an access to vacuum out pipework.
8) Disable dual flush on cisterns
9) Advise users just how expensive it will be to send an engineer with all the sanitary equipment, to unblock and clean out if the wrong things are put in the loo.
Properly fitted and used not abused there will be no problems. We constructed hundreds of en-suites and facilities for disabled where all the waste water was pumped.
Golden rules,
1) Discharge pipe should go as high as necessary as near to the unit as possible.
2) From that high point on it should fall all the way to the soil connection without any dips or rises.
3) If 22mm copper is used, deburr inside of pipe cut completely.
4) If using 21.5mm plastic ( prefered ) use solvent weld only and ensure no excess in fittings.
5) No elbows anywhere, use bends only. We used Marley 2 piece adjustable o/flow bends everywhere. (other makes available etc. Use minimum number of fittings possible.
6) If run is overly long, consider using Blue polyE pipe and compression fittings, but properly supported. Mark it as "soil" at regular intervals. Or even 32mm pipe ***but not on the rising section***
7) Tap into soil stacks with proper strap on bosses and reducer, even on cast iron and pitch fibre, provides an access to vacuum out pipework.
8) Disable dual flush on cisterns
9) Advise users just how expensive it will be to send an engineer with all the sanitary equipment, to unblock and clean out if the wrong things are put in the loo.
Properly fitted and used not abused there will be no problems. We constructed hundreds of en-suites and facilities for disabled where all the waste water was pumped.
Boater Sam.
