What diameter is the inlet pipe ?

I honestly can't remember but I have non mains water (i.e. a private well) with VERY low water pressure so had a big problem finding a suitable item to cope with low water pressure. This model was the only one that worked and it has been fine for several years now. I imagine the inlet was either three quarters bsp or 22mm pipework. Posibly 15mm - whatever diameter pipe enters the cistern is the size to work from. Probably, on refelction 15mm but if it is a BSP (British Standard PIpethread) then that will determine the fitting. Suspect it will be a tank connector of some sort with BSP on one side and either 22mm or 15mm on the other. HM

Why does it hum after flushing

Good question. We had our plumber replace both this and the flush valve. Our cistern still 'chugs' like an engine usually after the short flush, long flush usually ok. We've had the plumber back 3 x times so far so we were wondering if our recently replaced flush valve is defective as we've noticed water trickling into the pan when it gets noisy? Getting to the point of replacing the whole toilet/cistern, its driving us mad!

Is this suitable for mains pressure fill.

We use it for mains pressure filling of our cistern. As previous comment it does seem very flimsy, but has worked ok so far!

I require the model without the plastic hoop at the water entry point, can you help

Sorry - I'm not really sure about this. Do you mean the white, circular lip towards the bottom of the water entry tube? If that's what you mean, it acts to seal the tube and the bottom of the cistern so is pretty crucial in order to avoid leakage. Can you give a bit more detail of what you are aiming to do, please?

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W.C. Fill Valve Bottom Entry

Product ID: 53426266

Details

Brand
Fluidmaster
Exterior finish
Plastic
Inlet connection size
0.5 Inches
Inlet connection type
Compression
Item dimensions L x W x H
17 x 5 x 39
Material
Plastic

🔧Includes washer, spigot nut & restrictor

♻️Durable WRAS-certified plastic build

⚙️Precision 0.5-inch compression inlet/outlet

248 kr

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Description

🚽 Upgrade your flush game with precision and ease!

COMPACT DURABLE BUILD - Space-saving 17x5x39 cm plastic valve designed to last and resist corrosion
WRAS CERTIFIED RELIABILITY - Meets strict UK water regulations for safety and performance
SEAMLESS BOTTOM ENTRY DESIGN - Optimized for easy installation and maintenance in tight toilet tanks
COMPLETE INSTALLATION KIT INCLUDED - Comes with washer, spigot nut, restrictor, and clear instructions for hassle-free setup
UNIVERSAL 0 5 INCH COMPRESSION FITTINGS - Ensures compatibility with most standard plumbing setups

The W.C. Fill Valve Bottom Entry by Fluidmaster is a WRAS-certified, plastic globe valve designed for efficient toilet tank refilling. Featuring universal 0.5-inch compression inlet and outlet connections, it includes all necessary components for quick installation. Its compact design fits most standard toilets, making it a reliable and easy upgrade for any bathroom plumbing setup.

Specifications

ASIN	B0051TQOTG
Best Sellers Rank	10,285 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Tap Valves
Brand	Fluidmaster
Connector Type	Compression
Country of Origin	Turkey
Customer Reviews	4.0 4.0 out of 5 stars (884)
Exterior Finish	Plastic
Included Components	Fill Valve, washer, spigot nut, restrictor and instructions
Inlet Connection Size	0.5 Inches
Inlet Connection Type	Compression
Item Dimensions	17 x 5 x 39 centimetres
Item Type Name	W.C. Fill Valve Bottom Entry
Manufacturer	Generic
Material	Plastic
Model Number	B661AT
Number of Items	1
Number of Packs	2
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	0.5 Inches
Outlet Connection Type	FNPT
Part Number	B661AT
Set Name	Old Variant B661AT
Size	2" x 6.7" x 15.4"
Specification Met	WRAS
Thread Size	1/2 pollici
Thread Type	NPT
UPC	791429004259
Unit Count	1.0 count
Valve Type	Globe Valve

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248 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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