Thomas Dudley 324395 Turbo 88 Adjustable Syphon - Blue

I found this item to be very good quality. The height adjustment is very useful. I have a slim, high cistern and I could adjust it to fit perfectly. Like all syphons of this style, it has an internal overflow. Just get the height adjustment right. 1 thing I would say, the inlet is a tight 38mm. I have 40mm pipes from B&Q and they do not fit. Had to use a reducer to plumb it it. Can't blame the product. It is clear in the description. I thought it might fit anyway. Surely poppies are a standard size? Er, no.

Had to change the internal flush system of one of our toilets. Had done it a few times before so knew what I needed. The syphon has a plastic film piece inside and its usually that that fails. Took the old one out and there was a tear in the film as I suspected which was why the flush wasn't as powerful. This is really well built and adjustable so can make it taller if needed to give the support to the lid of the unit. Can do it without any tools but having a pair of adjustable grips to tighten final plastic nuts is ideal. Works like a dream. Don't rush it and take a few pics on your phone before you take the old one out to double check if you've never done it before. And check the size of the old one as they all do vary in terms of the footprint (how much space they take up inside the cistern).

The initial instalation was perfectly straight forward and all seemed well. Over a period of time the dual flush feature has failed and seams not to be able to fix / repare. something to do with an odd size large black rubber wisher that should be a few pence to replace if I could find a supplier. It apears like most modern things, designed to wear out over someting tiny and replace the whole item. Update, 2 years on, I have worked out a fix to restore the dual flush. two images attached edited extracts from on of Dudleys manuals with notes added. 1. isolate water supply and flush emply cistern 2. Carfully remove the syphon part of the machanisum 3. Carfully dismantle the diaphragm. 4.Clean the two washers, 1 plastic and 1 rubber and dry. 5. Three or four small drops of contact adhesive on the e flat side of the plastic washer and bring the two washers together, leave to cure as adhesive instructions. 6. Reassemble with replacement diaphragm if required and refit unit. 7. Turn on water and test. Our installation now works agin like new. One star knocked off for poor design in the first place.

One the toilet cistern had been dismantled the syphon was easy to fit, and it works well. It will also be easy to replace the valve when required.

Super replacement. Old flush was noisy and hard to flush, this takes so little effort, and the dual flush means you save a little water. You just hold the toilet handle down and it does a half flush. Easy to install plus if you're unsure there's hundreds of videos online to follow. Just be aware you do need to remove the cistern to install this product.

after watching handyman on youtube -i thought i may as well have a go to change the syphon that had given up in my toilet .i tried all the local shops to get this syphon -but none had it .so i ordered this one -and although it is more expensive than the shop ones -it is much better quality .it did take me a while to plod through and do it --but i managed in the end -and am over the moon to know when it goes again i do not have to undo all the gubbins -just whip out the membrane and change it .the order came when it said it would -so all in all -i am a happy older lady .

Universal replacement for standard syphons. We replaced one that no longer flushed fully, and this item fitted pefectly. Adjustable height allows for deeper cisterns. And it has removable plugs if you want to reduce the volume of water used each time. One point to note: for a half-flush you pull and hold the handle. For a full flush, pull and release. Reverse of some other syphons, and there's an adhesive label to stick to the cistern, to remind users.

I used this product to replace a faulty unit in my toilet and thought it would be a good idea to buy one that was easy to service. I did not like the installation instructions - no explanation of what the 7.5 inches to 9.5 inches were relevant to, small print, no explanation of which way up to fit sealing washers, flush volume settings not correct as dependent on total volume of water held in the cistern. I had looked at YouTube videos but somehow missed the one that gave the height answer - the measurements are relative to the cistern bottom to the water line marked on the back of the cistern. However, I set the height to be the same as my old unit as the hole at the top was needed for the cover fixing screw. This affected the automatic overflow feature which seems to be what the height adjustment is for - not needed anyway. The height was set to 241 or 9 1/2 which I now know refers to 241 mm or nine and a half inches. An 'O' ring had come adrift coming out of the tube that is above the diaphragm. Fortunately I was able to remove the assembly and put the 'O' ring back in position. The unit itself was fitted in minutes but I spent a lot of time cleaning limescale from the inside of the cistern beforehand and having to make a link to go between my cistern handle and the link supplied as it was about an inch short. I used the link from my old unit using a vice, hammer, a metal cutting tool etc. to make a small link. I like the way that the unit comes apart easily to replace the diaphragm if it fails in the future but I tested this feature out after installation and unfortunately, I could not remove it easily in my slim tank as advertised because the arm that operated the ballcock was in the way and the only way to overcome it was to turn the water off and remove the ballcock arm with the ballcock attached. I also had the pins at the back of the cistern which made it difficult to get to, so I changed them to the front. There was then not enough room between the unit and the cistern front to remove the pins fully so I had to lift the unit up to allow the full removal. My cistern is probably over 30 years old and called a Dudley Elite which had a full and part flush and a cistern flush volume set to 9 litres. The reduced flush did not work properly on the Turbo 88 - you have to wait a long time for it to stop flushing before letting go of the handle and then an endless trickle of water goes into the pan. The only way to stop it is to lift up the ballcock, wait a while until there are gurgles and popping. The full flush worked well and nice and strong. It will be probably years before a diaphragm change is required as the last one lasted over 30 years. UPDATE MAY 2024 I fitted another of these to my bathroom toilet cistern as the old syphon was not functioning properly. More hassle! The reduced flush did not work properly again like the above one. Problem with leaking from the bottom of the cistern and had to resort to adding P.T.F.E tape on the threads. The sealing washer on the syphon has a flat side and a ribbed circular side. I fitted the flat side down to the bottom of the cistern (used common sense as no instructions). Be aware that the cone washer on the 1.5 inch outlet pipe should be set cone upwards as fits partly into the outlet pipe of the syphon bottom. Set to single flush but the flap valve kept sticking halfway up the chamber - seemed to resolve itself after moving the flap valve up and down many times while disassembled. This unit will be difficult to remove to service in a slim cistern, like many modern ones. Note that if you reduce the flush volume with the pull-out plugs, it is normal for the cistern not to empty fully as dependent on the total volume of water your cistern holds. My bathroom cistern was measured to hold about 14 litres of water up to the fill line and I had to use the 6 litre volume setting to end up with about a 9 litre flush. The 9 litre setting produced a flush volume of nearly the whole tank - about 14 litres when I tested it initially. Overall, it works well if you only need a full flush system and want to service it easier in the future.

Good

fantastic replacement for the broken one.

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