Water keeps pouring into pan stopping it from filling up

I have only just bought this, and this is exactly the problem I am having. After flushing, the overflow pipe gets stuck in the up position and water keeps pouring into the pan. I don't really want to remove the strainer to return the part, as that means taking the whole cistern off again. Is it possible to just get a replacement for the outlet valve or cable, as a brand new product really should be working?

I need to know if outlet is 2"bsp, without adaptor?

I can confirm thread on bottom of adaptor is 2" BSP, hope this helps

can you explain the reason and adjustment for dead water valve and short flush cursor

Download the manual 5496_Notice 50+Robinet_GB from this site: http://www.leagrave.net/file/siamp_optima_50_instructions.PDF, this explains the function of the dead water valve which controls the amount of residual water remaining after a long flush. It also explains the setting of the slide valve that controls the amount of water consumed in the short flush.

Will this fit most toilets. My system is older button And its faulty?

If it looks the same it will fit. It is very easy to fit with just a twist to remove then a twist to fit.

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Siamp 32500007 Optima 50 Flushing Mechanism, White

Siamp 32500007 Optima 50 Flushing Mechanism, White

Product ID: 49915371

Details

Brand
SIAMP
Exterior finish
Painted" or
Inlet connection size
1.5 Inches
Inlet connection type
Female Iron
Item dimensions L x W x H
9 x 12 x 27.5
Material
Ceramic

🔧Easy retrofit, no cistern removal needed

🚿Dual flush with adjustable small flush 2-4.5L

⚙️Adjustable height & overflow in 4mm increments

NZ$118

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Description

🚽 Upgrade your flush game — efficiency meets effortless style!

DURABLE CERTIFIED - WRAS approved with a 10-year warranty, built to last with premium plastic and ceramic.
CUSTOMIZABLE FIT FLOW - Adjust height and overflow in 4mm steps to perfectly match your cistern.
UNIVERSAL COMPATIBILITY - Pre-fitted in top brands like Vitra, Twyford, and Roca for seamless replacement.
DIY FRIENDLY INSTALLATION - Replace your flush valve without removing the cistern—save time and plumber costs.
EFFORTLESS DUAL FLUSH CONTROL - Push-button actuation under 20N for smooth, precise water use.

The Siamp 32500007 Optima 50 is a WRAS-approved dual flush valve designed for easy retrofit in plastic or ceramic cisterns. Featuring adjustable height and overflow, it offers customizable water flow from 2 to 4.5 liters per flush with a high flush rate of 3.5L/s. Compatible with major brands and backed by a 10-year warranty, this durable mechanism ensures efficient, eco-friendly flushing with minimal installation effort.

Specifications

ASIN	B00VX68DIG
Best Sellers Rank	3,151 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Toilet Parts
Brand	SIAMP
Country of Origin	France
Customer Reviews	4.5 4.5 out of 5 stars (2,430)
Exterior Finish	Painted" or "Coated
Included Components	1 x Flushing Mechanism
Inlet Connection Size	1.5 Inches
Inlet Connection Type	Female Iron Pipe
Item Dimensions	9 x 12 x 27.5 centimetres
Item Type Name	Siamp 32500007 Optima 50 Flushing Mechanism
Manufacturer	SIAMP
Manufacturer Warranty Description	10 year.
Material	Ceramic, Plastic
Model Number	03247230071302
Number of Packs	1
Number of Pieces	1
Number of Ports	3
Outlet Connection Size	1.5 Inches
Outlet Connection Type	FNPT
Part Number	32500007
Size	27.5 cm
Thread Size	38mm
Thread Type	BSP
Unit Count	1.0 count
Valve Type	Dual Flush Valve

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NZ$118

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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