For a W.C. up to 50 metres horizontally from the soil stack. Do not use where a vertical lift is required.

For a Saniflo installation the pipework should not exceed 50 metres, and must incorporate a fall of at least 1 in 200 (1 inch per 15 feet along its length.

If the piperun is over 40 feet in length, increase the pipe size to 32 mm (1.25") from that point onwards. (Each bend reduces maximum pumping distance by about 1 metre).

 
The Saniflo unit is positioned for connection to the WC pan spigot (see illustration above) allowing adequate clearance for the unit to be removed for maintenance. It may be necessary to mount the WC cistern on battens in order to achieve this clearance.

The outlet socket is connected to 22 mm diameter copper pipe to BS 2871 Part 1 1971 Specification for copper and copper alloys. Tubes—Copper tubes for water, gas and sanitation (or other pipework approved by the BBA for use with the unit. This includes rigid solvent weld plastic pipework which has a BS Kitemark or is BBA approved). Joints must be made with fittings to BS 2051 Part 2 1984 Specification for olive type copper alloy compression tube fittings.

All discharge pipework from the unit should run horizontally with a slight fall (approximately 1 in 200 or 5 mm per metre run). Sharp bends should be avoided where possible.

The internal vent pipe (supplied) must be fitted to terminate above the level of the top of the WC pan . Alternatively, if preferred, 22 mm diameter push fit ventilation pipework can be fitted and run to the outside of the building.

All pipework must be adequately supported throughout its length as detailed in BS Code of Practice 310 1965 Water supply.

Electrical connection

The electrical supply cable from the unit must be connected (with the mains supply switched off) to an unswitched fused (5 amp) outlet, 240 V single phase domestic supply