Flush Valve Replacement

flush valve replacement

The role of the flush valve replacement is such that permits the flow of water from the tank into the bowl.

This happens in such a way as to result in a whole flushing cycle, involving cleaning and removal of contents from the bowl.

Once the trap seal replaced, the bowl will fill with a particular volume of water.

(By the way, the trap seal is particularly vital, keeping the smells from the sewer away.)

The design of the toilet determines the type of flush valve to be used, and it makes use of its constituent material.

Therefore, you cannot have your toilet upgraded from a flapper style to a canister style.

Take note of this when selecting new toilets.

The canister-style flush valve has its benefits and drawbacks, as it quickly lets more water in than the others.

As water enters the bowl quicker, it cleans with more power.

Sadly, this also leads to water wastages.

In some cities, a larger pipe might be required, meaning additional expenses.

Confirm the resident plumbing codes with the building department in your area.

Flush Valve Replacement: Two-Piece Toilet Canister-Style

1: Take off the lid of the tank and position it on a big towel in a shower or bathtub, to guard against breakage.

2: Shut off the toilet water supply and drain the toilet tank by flushing.

3: Position a big towel round the toilet bowl to trap and water leakage, after which you detach the water supply.

4: Remove the bolts holding the tank to the bowl and lift the tank from the bowl; position its side on the floor.

5: Unscrew the big nut located on the tank’s bottom center.

6: Take out the canister flush valve, which should have a flush valve gasket attached, from the tank.

7: Attach the new flush valve replacement gasket to the canister and place it in the hole at the tank’s bottom.

Ensure that it is positioned as in the old one, then screw the nut tight on the bottom of the tank.

8: Fix a new tank-bowl gasket on the protruding threads of the flush valve, and put the tank into the bowl bolts.

9: Position the tank again on the bowl, ensuring the tank aligns with bowl bolts.

Ensure the tank is carefully tightened to bowl bolts so as not to crack the tank.

10: Reattach the water supply line and then turn on the water.

Then check that there are no leakages by flushing, and that it flushes properly.

You can adjust the flush valve in any way to get the best possible flush.

Flush Valve Replacement: One-Piece Toilet Canister-Style

1: Take off the lid of the tank and position it on a big towel in a shower or bathtub, to guard against breakage.

2: Shut off the toilet water supply and drain the toilet tank by flushing.

3: Remove the retaining mechanism on the flush valve; some make use of three screws having offset lugs, some have the canister held in place by a U-bar, and others require twisting the canister to loosen the plastic tabs.

Side Note.

For the type with screws and offset lugs, unscrew and turn the lugs to face the middle of the flush valve, letting you lift out the flush valve.

U-bar styles are unscrewed in the middle of the flush valve till it moves from side to side, then shift it to one of the sides till the bar comes out and take out the flush valve.

For the twist off/on type flush valve replacement, gently push down and twist so as not to snap off the tabs.

Increase the pressure as you go.

Kohler type canister valves normally wouldn’t need to detach the bottom of the present valve unless the leakage is caused by a worn out or broken seal.

Take out the cylinder of the canister by slowly pressing the center shaft.

Then, rotate anticlockwise a quarter turn to loosen the rod and pull it up and out.

At this point, you can now replace the seal of the canister flush.

You have to take out the base if the flush valve gasket is responsible for the leak or is worn out.

To do this, press the base and slowly twist till the tabs are positioned to have the base released from the tank.

The flush valve replacement gasket ought to be attached and taken out with the base.

4: Fix the new flush valve gasket and valve.

This will be in reverse of the guidelines for detaching the valve type you are dealing with.

5: To fix the new valve, you need to place some dish soap in between the base flange and flush valve gasket.

Side Note.

Make sure the tabs are aligned on the base against their tank slots.

Slowly press the flush valve gasket as you rotate the base till the tabs hold the base in position.

If you have separate pieces of base and canister, then have the cylinder of the canister aligned with the base and put the rod underneath the canister cylinder into the base center

Slowly rotate the rod clockwise by a quarter turn to lock steady.

6: Attach the trip lever chain.

7: Turn on the water supply, and check that there are no leakages by flushing, and that it flushes properly.

You can adjust the flush valve in any way to get the best possible flush.

Please read our article on fill valve replacement next!

Call us at (559) 940-0890

Clovis Plumbing Services