Siamp Monaco 95L 1/2" and 3/8" BSP Universal Side Inlet Cistern Fill Float Valve 30956510 Brass Thread

Very pleased with the product. Package came with all the associated parts required. Assembled in seconds, and fitted to system within minutes.

its a float valve, fills the cistern so there shouldn't be much to brag about. But this one is different, it is so easy to install and that's the trickiest bit. full marks. look no further. totally recommend. comes with an adapter for different size pipes but i didn't have to use it. I'm a DIY'er with rudimentary skills and could handle the replacing task within 30 mins including the jugglary with the wall-mounted concealed dual flush plate.

I bought this to replace an identical Siamp float valve in my Verso 350 concealed cistern, which unaccountably stopped shutting off when the rising water level closed the float lever. Removing and cleaning and changing the diaphragm did not cure the problem, so thought I'd try replacing the whole thing, as around a £10 outlay is pretty reasonable.Very easy to fit even in the fiddly enclosed space behind the access hatch, and so far it shuts off fine, so seems to have solved the problem [single day experience so far though, so let's see if this continues.]However just as a warning: the brass fittings supplied that you screw the water inlet into turned out to be too long to allow the inlet tap in my concealed cistern to be screwed in. They are 3 cm long while the one in the original valve in mine was 2 cm. The fittings supplied with the new valve seem to be designed to go through apertures in external cistern walls.This wasn't a real problem as I swapped the 2 cm fitting from my system into the new valve-it is detachable and pushes into the new valve with a washer. If you have a concealed cistern you will be able to do the same.

I bought this to replace a Geberit DVGW 397 which was making a clunking noise every time it shut off. I got a bit confused when researching what I needed, as the threaded pipe that came out of the cistern (the bit that sticks out on the left in the Amazon picture) actually had a diameter of 5/8 inch, and all replacement valves were described as either 3/8 or 1/2 inch, but I eventually found out that the these are the internal diameter of the inlet pipe, so to determine what you need you have to deduct 1/4 inch from the external diameter of the existing unit. Hope somebody else may find this helpful!After all that, the Siamp includes both size inlets anyway, although by this time I knew I wanted the 3/8 size. When it is delivered the 1/2 inch is fitted, so the first job is to swap it over. The instructions are extremely clear and easy to follow, although it is pretty obvious anyway.Fitting the new unit was a doddle, just turned off the water supply, loosened off the nut on the end of the feed pipe, removed the locking nut that held the existing valve in place, and removed the complete unit. Connecting the new unit was a simple reversal of the process, although I did put a few turns of PTFE tape around the thread before reconnecting to the feed pipe. No more than 10 minutes in all, and the new unit is now working perfectly. Fills quickly, and reasonably quietly, and shuts off smoothly.I had never heard of Siamp before, but they have in fact been around since 1947, are based in the UK (Oldham), and specialise in sanitary products.

I ordered this side entry valve to replace my 'foghorning' standard ball valve. While the build quality is clearly very good, the float is designed in such a way that the inlet shuts off far too early for a standard depth cistern. The issue is caused by the float sitting below the valve assembly, so limiting the amount of available vertical travel. Even with the float in its highest position, my cistern was barely half full and not enough to cover the siphon, rendering it useless. I imagine this design would be great in a large header tank. It shuts off quickly without any fuss and fills relatively quietly. I needed to cut a slot in the side of the float so that it starts to rise later in order for it to operate correctly.It should also be noted that this design protrudes a long way into the cistern, making it unlikely to fit standard syphon systems with the flush handle on the same side as the inlet due to the limited amount of space in this arrangement. If you think this might be an issue for you, I recommend the Thomas Dudley Hydroflo Brass Tail Valve assembly which has a blue 'cup' suspended to one side (or similar). It's very compact and achieves a high fill level in a standard cistern. There are several versions sold right here on Amazon.

My Siamp BCM350 Wall Cistern was hissing after 9 years of use. The inlet valve wasn't filling properly. I thought it was going to be an expensive plumbing job and with a Wall Concealed cistern, my husband was regretting our decision 9 years ago, thinking we'd need to tear down the tiles! Anyway, the stopcock in it was jammed...so had to turn the water off to the whole house. Lots of suppliers are charging over £20 for the inlet valve (plus delivery) but Amazon was charging only £11. Ordered and arrived promptly. Husband said order the stopcock as well - just in case...but I hesitated. That's another £12.50 plus postage - nearly £20. So I took a screwdriver and started dismantling. He came up, had a look, and decided to just go ahead, hoping for the best. Once the mains water was turned off, it was easy done - the old inlet valve came out, the new one went in - yes the copper pipe bit was slightly longer - but there was space enough for the longer connector. Took out the stopcock and soaked it in hot water and a bit of vinegar to unjam. All done and dusted. Everything is back to normal.