Summary

A noisy filling cistern can be irritating. An alternative 
is a system that fills the cistern from below the water 
line. To fit one follow  these steps below:

	1  	About noisy fillers
	2 	Isolating the water supply
	3 	Dismantling the old ball-valve fittings
	4 	Attaching the new fittings
	5 	Adjusting the float to the required level
	6 	Clearing any remaining debris

Tools
Adjustable spanner

Materials
Silent filler, washer

Step 1 - About noisy fillers
Cisterns normally use a ball-valve filler system, which 
can be quite noisy. It is possible to buy a proprietary 
device, which eradicates the ball-valve system and fills 
the cistern from below and hence is silent. Devices are 
available in different sizes for toilets and cold water 
tanks.

Step 2 - Isolating the water supply
Locate the stopcock or service valve and turn it clockwise 
to cut off the water supply. Flush the toilet to empty the 
pipes.

Step 3 - Dismantling the old ball-valve fittings
Unscrew the tap connector to disconnect the supply from 
the toilet. Unscrew the inner and outer retaining nuts to 
release the ball-valve fittings and remove.

Step 4 - Attaching the new fittings
The new fittings will attach to the old tap connector. 
You will to set the required depth tube to 25mm/1inch 
above the cistern bottom by following the maker’s 
instructions. Adjust the tow back nut so that the new 
fitting attaches to the old threaded tap connector.

Step 5 - Adjusting the float to the required level
Reconnect the supply. Always check for leaks after any 
plumbing job. You can adjust the water level to the 
desired position by twisting the float adjustment rod. 

Step 6 - Clearing any remaining debris
It is important to clear any debris from the installation. 
To do this, turn off the water supply once more and release 
the float adjustment arm from the arm. Remove the cap 
Assembly by rotating 45 degrees clockwise. Turn the water 
supply back on off a short period and then back off. 
Reassemble the cap, and float arm and adjustment rod before 
restoring the supply once more.