Drawing 10148 REV 0 24-11-15
Routine Maintenance of system Cont.) Auxiliary dosing equipment dosing pumps etc.
The following instructions apply to Topline supplied products only
Dosing pump maintenance (see www.topline.uk.net for downloads of pump manuals)
General Dosing pumps
The dosing pump is located on the day tank and pumps the chemical solution into the pool. By
removing the dosing pump fixing screws, the pump can be lifted clear of the day tank.
Before removing or replacing any dosing pump part release the pressure and turn off the TEC2000.
When dismantling any of the below assemblies, clean with an injector cleaner which you can
obtain from your chemical supplier, taking care to remove any scaling as this scaling acts as a
key to further scale build up. (Note: spraying with a silicone based lubricant after cleaning will
help prevent scale build up). Re-assemble taking care to check that the one way valves are in the
correct position, feed and injector pipes are secure.
Foot valve assembly
The foot assembly filters the solution (chlorine, acid etc.) so that the dosing pump cannot be
damaged by solids in the solution. It also stops the solution from draining back into the day tank
and the dosing pump from losing prime. The foot valve assembly is located at the bottom of the
chemical day tank linked to the bottom one way valve on the dosing pump via the feed pipe, and
will need cleaning or replacing if the dosing pump will not work or prime. The feed pipe connects
to the foot assembly with a plastic nut, see pictures.
Feed Pipe
The feed pipe connects the foot valve assembly to the dosing pump. If this pipe is blocked replace
with new pipe.
Bottom one way valve on dosing pump
The bottom one way valve stops the dosing pump from losing prime. The bottom one way valve is
located below the dosing pump head and is connected to the foot valve assembly via the feed pipe.
This may need cleaning or replacing if the dosing pump will not work or prime. The feed pipe
connects to the bottom one way valve in the same way as the foot assembly connects to the feed
pipe.
Injector pipe
The injector pipe connects the dosing pump and injector to the pool and should be contained in
continuous tube or pipe. The pipe connects to the top of the dosing pump and injector with a washer
and locking ring. The pipe should be free of cuts and abrasions, if there is any doubt on the
condition of the injector pipe then it should be replaced. Before removing or replacing the injector
pipe release the pressure in the dosing line. The injector pipe should be replaced every 2 years.
Day and Bund Tanks
Tanks should be clean, not have any leaks and be labelled correctly. All spillages should be cleaned
immediately.
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