Problems with a grohe urinal flush valve not flushing straight away and when it does there is not enough water to clean the urinal

SOURCE: I need a blue print on how a sloan urinal flush

SLOAN FLUSH VALVES ARE SIMPLE. IT DEPENDES ON THE PROBLEM. IF THE VALVE KEPS RUNNING AFTER IT IS FLUSHED THE RUBBER DIAPHRAM IS DIRTY OR OLD AND THE RUBBER DIAPHRAM IS GETTING HARD. AND STICKING. THE VALVE WORKS ON A VACUME TO CLOSE THE DIAPHRAM TO STOP THE FLUSH PROCESS. WHEN YOU PULL ON THE FLUSH HANDLE YOU BREAK THE VACUME THAT FORM ON THE TOP OF THE DIAPHRAM WHICH ALLOWS THE WATER TO FLOW AS THE WATER FLOWS IT IS ALSO STARTING TO PULL A VACUME IN THE TOP OF THE DIAPHRAM TO CLOSE THE DIAPHRAM AND STOP THE FLUSH.
AS THE DIAPHRAM GET OLD AND WORN IT GETS HARD AND DOES NOT MOVE AS FREELY AND STICKS OPEN AND WON'T LET THE VACUME CLOSE THE DIAPHRAM AND THE URINAL WILL CONTINUE TO FLUSH. HOPE THIS ANSWERED YOU QUESTION

SOURCE: I have a Sloan urinal that will not stop flushing.

The rubber vacuum relief needs to also be changed if you have not. It is located in the tube that runs down to the urinal from under the flush valve. The handle could be hanging up.....or there could still be sediment stopping the diaphragm from working properly.

SOURCE: The flush valve does stay open long enough after flushing

Which style of flush valve do you have? If it is the dual-flush option (solids/liquids) I do not know how to adjust those. If you have a traditional style, then the flapper or ball is closing too soon. You need to adjust the guide arm (flush ball) higher or shorten the chain between the flapper and the handle. Adjust this carefully or you will have it fail to seat and the toilet will constantly run.

I hope this helps.

Cindy Wells
(who needed to replace the fill valve and the flapper at her home earlier this week)

SOURCE: not getting enough water in the tank to flush properly.

adjust the float level,it's a rod attached to lever next to float . i believe it will take a screw driver, look closely there is a+/- indicator

SOURCE: water leaking on floor...when flush..no urine

Before you flush the toilet, take the top cover off the tank.
Then flush.. Sometimes water sprays from the float valve,
sprays up against the underside of the cover, then runs down
the back of the toilet.

All my best to you.

LeRoy