Siamp 32500007 Optima 50 Flushing Mechanism, White

Perfect fit, sorted out our troubled bog. No more festering waste :)

Seems great, 5 minute swap for dodgy old one. Comes with long collar for low bogs.

These are very much made from plastic but in terms of replacing an old one exactly the same it is ideal. Twist off the old one and twist in the new one. Simple. My only problem has been the cable length to the actual button. I needed a shorter 30cm cable so ordered that separately as the one ordered indicated it came with a 40cm plus cable. When it arrived the cable was the shorter one anyway. Didn’t matter as it happens as used the extra one on the next one that broke. Personally I would prefer a more substantial method of flush but you can’t beat this if you want to replace a broken or worn out old one.

Great item for a direct replacement. No need to keep the carrier (bottom section) as if you have a previous one fitted, just quarter turn to inlock the top section and swap over with the new section. No instructions so was a little confused as the water level was lower than the central overflow tube but you have to cut the centre tube with a fine tooth saw/hacksaw when you have determined the correct overflow height. The graduation son the side of the central tube give you a guide. Easy fit, ten mins plus sawing time. Reconnect up the push button and all good.

Very pleased with item,took me around 5 mins to fit, the wife very happy,no foul language needed.

I purchased this to replace an old model as the toilet kept flushing. It was easy to twist the old flush valve out and replace with new. Now no flushing issues and works well. Only point i would make is that the cord is slightly shorter that the old one. In addition, I had to use a hack saw to reduce the height of the overflow due to the size of my cistern. I have attached a photo of the old version to help.

Key fact - these are supposed to come with a 10 year guarantee but there is no where to register the guarantee so how do you prove the age of old unit if it fails within 10 years? Did you keep the receipt? Did your plumber give you a receipt for the flush unit? I have now had to replace this flush for a third time in - 12 years. They fail every time where the flush cable attaches to the side of the flush tube, one of the two small (weak) plastic lugs that hold the cable in place breaks off and the cable comes away. It’s a design fault that needs addressing ( add a bit more strength here Siamp - easy fix during manufacturing) The unit is easy to swap- 1/4 turn anti-clockwise ( like an old lightbulb) and off it comes. The new one fits in the same way - easy. If Siamp could fix the design fault or sort out the so called “10 year guarantee” then this would get 5 stars but until these things are fixed it gets only 3 stars because you may find yourself replacing this flush unit every 5 years or so.

Used to replace the Optima 49 version. The two parts of interchangeable. Our Optima 49 gasket failed cause the toilet to run. When removing the old part some of the clips broke off as were brittle. I liked the look of the push connection by wire so upgraded the old model to this. Fitted perfectly to the old cage in the bottom of the cistern. Took literally 5 minutes to fit. Great upgrade and was half the price buying here compared to the local plumbing centre.