Types Of The Toilet Fill Valve

Types Of The Toilet Fill Valve

A toilet fill valve is the one kind of component that sends the water behind into the tank to make it ready for the following flush. If you realize your toilet fill valve is leaking or has other problems, it’s likely time to repair the fill valve. The modern toilet also demands the proper fill valve that is always workable.

The most common issue is replacing or adjusting the toilet fill valve which is frequently known by the gentile term ballcock. A ballcock is the preceding form of this valve that is seldom placed anymore. There are various types of fill valves available in the market.

Maximum are fully interchangeable and can match the standard tank openings on the toilet, where the importance is the size and length of the valve stem. Several fill valves are attachable to match different tank sizes.

A few toilet tanks may contain flush valves with oversized overflow tubes which require a particular fill valve. The simplest way to purchase a compatible replacement is to get an old fill valve from the store.

Now many toilets are basically one-piece designs that may include prominent ballcocks or fill valves. Here are the four special toilet fill valves or ballcocks attainable.

1. Plunger Type or Old–model Ballcock

This is the former style of fill valve and very simple design but so reliable for your toilet. It is marked with its brass construction and with the appearance of the float ball adjusted to an extended arm joined to the fill valve. This is generally plastic and older models that may be a copper ball.

Technically, this kind of ballcock works with an easy plunger valve, equipped with a washer and seals in opposition to the inlet opening inner the valve. While flushing the toilet, the stem removes from the water inlet, assuming fresh water to run the tank.

When the ball increases high enough, the valve stem is levered down in opposition to the water inlet, closing the water flow. This fill valve can mostly be repaired normally by setting a new rubber washer on the tip of the valve stem.

2. Diaphragm-design Fill Valve

This is the alteration of the ancient brass style ballcock, in place of a plunger-type valve; the float ball manages the diaphragm seal interior of the valve. Where you can recognize this kind that involves a float ball and the stem of the fill valve is plastic material rather than bronze.

If the diaphragm is worn, then need to replace it, some people reach it easier to naturally replace the diaphragm fill valve with the float-cup type.

3. Float-cup Type Fill Valve

This is a very usual kind of fill valve, now you can see in most toilets. It is simple to establish, universal and dependable as most models can be easily laid out for heights from 7 to 13 inches, relying on which brand you purchase.

In lieu of a float ball adjusted to an arm, this style organizes the float cup adjusted to the stem of the fill valve. Since the float cup retreats up and down by altering the water levels inner the toilet tank, so adjust lever opens/closes the fill valve.

This model is absolutely easy to repair by putting the interior seal set in the body of the fill valve.

4. Float Less Style Fill Valve

The Float less style fill valve is located at the bottom tank, below water, when you first open your toilet tank you may not understand that.

It includes a diaphragm to feel the exact water level from the base of the tank. It is well-matched for low-profile toilets due to its tiny size, where the older designs contain the possible siphoning water behind into the freshwater supply.

If you use the former models of float less fill valve, there is a great chance it is no completely conducted by code and then must be replaced. However, the newer models involve anti-siphon characteristics which remove the health danger.

And you should understand that your local area’s Building Code accommodates this style, so the communities do not approve the use of float-less fill valves of any kind.

This type allows the easiest way for organizing the level adjustment where it is finished by generally turning a screw fixed on top of the fill valve.


In fine, it is evident that to replace the toilet fill valve is not so difficult task. There are many fill valves accessible and the above four categories are also effective models providing you with the best fitting of your toilet.

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