Pentair T40BW standard inground automatic water filler with white lidPentair Standard Inground Pool Automatic Water Filler with Side Mounted Float Valve, White Lid, T40BW In stock$15599
Pentair T40BW standard inground automatic water filler with white lid
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Pentair Standard Inground Pool Automatic Water Filler with Side Mounted Float Valve, White Lid, T40BW

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$15599
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Quick overview

  • No electronics The level is held by a mechanical float valve, so there is no board, sensor or power supply to fail.
  • Standard inground model The version for standard inground pools; Pentair makes a separate filler for vanishing edge pools.
  • Side mounted valve This model uses the side mounted float valve. A Fluidmaster valve version is sold separately.
  • Prevents a dry pump Holding the level up keeps the pump from losing prime and running dry.
  • Stops overfilling Automatic shutoff avoids the wasted water and soggy landscaping that come from a hose left running.
  • White lid White deck lid; other lid colors are offered as separate items.
Full description and specifications ↓

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Product details

The Pentair T40BW is the standard inground version of the automatic water filler, fitted with the side mounted float valve and a white deck lid. It sits in the deck and holds the pool at the level you set.

Mechanical, not electronic

There is no controller, no sensor and no power feed. A float rides on the water and opens the valve as the level drops. That is the whole mechanism, and it is why these fillers tend to outlast electronic level controls with far less attention.

What it prevents

Two problems, in both directions. A pool that falls below the skimmer starves the pump, which loses prime and can run dry. A hose left on to fix that wastes water and soaks the landscaping around the deck. The filler handles both by holding one level and closing off at it.

Model and valve

This is the standard inground model. Vanishing edge pools use a different Pentair filler. The standard body can be fitted with either the side mounted valve, as supplied here, or a Fluidmaster valve ordered separately.

Specifications
Brand Pentair
Manufacturer part number T40BW
UPC 807318013902
Type Automatic water filler, deck mounted
Model Standard inground
Valve Side mounted float valve; the manufacturer descriptions describe the valve as brass in some listings and PVC in others
Lid color White
Control Mechanical float, no electronic controls
Valve options Standard model accepts a side mounted valve or a Fluidmaster valve
Shipping weight 4.15 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Is the float valve brass or PVC?
The manufacturer listings disagree. Some describe the T40BW valve as brass and others as PVC, so confirm with the packaging or the parts diagram if the material matters to you.
Does it need power or a controller?
No. It is a mechanical float valve, so there is nothing electronic to wire, program or replace.
Will it work on a vanishing edge pool?
This is the standard inground model. Pentair offers a separate filler designed for vanishing edge pools.
Can I fit a different valve to it?
Yes. The standard model can be equipped with either the side mounted valve or a Fluidmaster valve, which is available as its own part.
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