Arctic Hayes ‎ZEK2 Aero Disposable Pipe Freeze Kit with 2 Freezing Jackets for Plumbing Installation, Repair & Maintenance. Freezes Plastic & Metal Pipes (8-28mm Diameter), Blue

I wanted to remove 6 old TRV's (Thermostatic Radiator Valve) on radiators and fit new ones but that I didn't want to do was do them all in one go (I actually did one a day !), and I also didn't want to drain the whole system either... enter this great kit !Please not one kit will do TWO radiators, so I needed 3 kits.First you should fully close the valve at the opposite end where the TRV valve is (usually has a small push on cover over it) then next fully close the old TRV... i.e. set to lowest setting (1)… then slacken the nut from the TRV nearest the radiator, thus allowing all the water to drain from the radiator - on my smallest radiator it took 2 dishes of water, so make sure you have a bucket or two to empty the water into (there will be more water than you think) and a couple of old towels in case of leakage !Next it was time to use this brilliant kit... you first fasten the blue insulating sleeve around the pipe using the sliding fastener provided and then secure it 'very tightly' at the bottom to the pipe with the cable tie provided.Then you attach the little pipe to the aerosol and squirt the cold spray into the jacket pushing the nozzle into the inside of the jacket, next to the pipe.You need to keep topping it up a little at time until you have used half of the aerosol, and you then need to leave it about 5 minutes so the 'ice plug' form in the copper pipe.(Full instructions are included.. PLEASE READ THEM, this is just a quick summary !)After 5 minutes or so I slowly opened the TRV to maximum (6) to make sure no water came out (this shows the ice plug has formed, if you get water coming out, close the valve again (1) quickly and squirt more aerosol in... but I had no problem with any of my 6 valves) you can then remove the old TRV and in my case I used a professional pipe cutter which you put on the pipe and turn it one turn but you can use a hacksaw then file the top of the pipe smooth, it just takes longer and is more fiddly.After removing the old valve to can fit the new one, I made sure the new one was closed (once again, set to "1") and have the nut and olive to hand so you can fit it to the pipe straight away... don't forget all your tools too, so you don't have to go out to the shed for 10 minutes to find them, the plug could melt in that time, please, please, prepare !The pipe should stay frozen for up to 20 minutes, but I managed to change each valve in 5-6 minutes max.When that is fitted, attach the other end of the valve to the radiator, remove the blue insulating coat by cutting the cable tie and removing the slider... open the valve at the other end of the radiator, then wait 10 minutes or so for the pipe to fully thaw out and check for leaks... bleed the radiator at the top, then you can fire up your central heating and once again check for leaks.This freezer kit is excellent and really saves you a lot of time and trouble draining the system, as you have to attach a long pipe to the lowest drain point of the system which then has to be run outside of the house to get rid of all the water. Trust me it is not fun and takes ages, then it takes ages to refill the system, this kit is SO much easier !Hope this helps !

Our Cockstop tap was leaking and we couldn't find the outside manhole tap to close it. (Old building 1847) This worked exceptionally well. We just needed to freeze the one side of the pipe and replace the tap. It was very easy to use and I would use it again.

Nothing wrong with this product except the price, but it was the cheapest I could find at the time.

I have only used this on a vertival pipe. It froze a 15mm copper pipe quickly. I needed to replace a raiator valve. I have about 1/2 of the can left for another pipe if needed.

Does the trick, but left me a bit stranded.Bought to lower a radiator, so I needed to freeze both sides before cutting the pipes and refitting the valves.I bought a large pack, which is supposed to give you 2 freezes for 15mm copper. Instructions say "spray for 3 mins - half a can". The whole can was gone in a little over a minute (and it's not like you can see how much you're using, nor can you really get a sense of the weight change).It does work well, but then I was stuck and just had to drain down the system anyway to finish the job and do the other side before the ice melted.Therefore a bit of a waste of money.If you're doing similar, I'd just drain down.

Product did not work out the box following the instructions. You cant get a tight enough wrap with the cable ties when using the hard plastic sleeve clip as the instructions said as its not flexible. If you cut the sleeve clip to allow for the cable ties on the end the sleeve wont seal properly. You can wrap the ends in lots of tape to stem the flow, but by the time you have tested this there is not enough spray for the second pipe. Had to drain the system in the end due to the unreliability of this expensive product. It did not freeze the pipe to allow for removal. Would not recommend

I had to replace the washer on the cold water main entering my flat. This would normally mean closing off the supply to the building and inconveniencing the other five flats and up to twenty people living here or calling in a plumber with an electric freezing machine. Instead I used this stuff to seal off the stop cock valve so I could work on it and the job was done in half an hour. The pipe I froze was a 15mm copper water pipe, the instructions said that half a can would do it but I used the whole can as I was not going to risk it. Froze the pipe solid after a five minute wait, and it slowly started to thaw after 15 minutes which was plenty of time to replace the washer and clean the valve seat. Stop cock works perfectly now, this product made a tricky job simple. Brilliant.

I read reviews on this before buying and was a little apprehensive but had to do it anyway as i needed to cut pipes without draining the system. Some reviews said it didn't work.Bought the large can which does 2 pipes. The instructions did not clarify for how long you pressed the nozzle for on the 1st pipe. I was fearful of going for too long and not having enough for the second pipe.Cleverly I weighed the can. Took off the contents weight to work out the weight of the canister. Halved the weight of the contents and added this to the weigh of the canister. Then pressed on 1st application until the overall weight was down to half contents plus canister. Had to stop and weigh a couple of times.Once fully applied waited the 5 mins and then cut the pipe. Bingo! I was to, say politely, amazed to see there were no leaks. The ice plug worked well. Tip of the day. Put the alarm on your phone set for a few minutes before they say the ice plug will start melting.

Worked well. Replaced 1/2 live copper line on fan coil convection hvac system in apartment. Looks like it works best when product directly touches pipe inside sleeve. I stuck nozzle directly between sleeve and pipe and it froze solid once I followed directions. I was a bit skeptical and worried from all the bad reviews but it worked great for me.

Great product. Used it like it said how to and it worked perfectly. It never froze it for the full 30/ 40 minutes. But it did work for around 15 minutes. Enough for me to cut and replace a valve with a shark bite valve. Thanks again.

I read the reviews and there were a lot of negative comments about the pipes not freezing and general dislike for the product, but I pushed those comments aside and purchased it anyway. I had to replace a pressure relief valve on a closed loop HVAC system. Whoever designed my cooled water system failed to put in a shutoff valve for the eventual replacement of the pressure relief valve, so creating a frozen water block seemed like a great option. Like many other reviewers, this did not completely freeze the lines. Could have been that my closed loop water system has antifreeze in the water, could be the product is garbage like the others said bottom line is it did not completely freeze the water in the pipe. I think it did freeze some (and I used almost all 300 ounces of the product. Most disturbing about this product is that it set off our Freon detector system. The Freon detector system triggers an alarm when the Freon level in the room is above a safe level. Both the R-134a and R-22 detectors went into alarm - significantly into alarm. The detected level was 2-3 times higher than the safe level. God knows how this might affect people in a fairly enclosed area (the room I was in is about 40 feet x 40 feet). I would be very cautious about using this product and do not recommend it.

I was doing a main service repair in a house. It froze the 3/4” copper line no problem as instructed. I cut the main line and to my horror realized I had bought the wrong size repair coupling when I tried to slip it on. While my guy raced to the plumbing supplier it still took him almost 30 min to get back and I was $&@?! My pants fully expecting the freezing to let go and flood this basement. We put on the new coupling and about 5 minutes later the water started flowing. This stuff worked amazingly!!!And I learned a valuable lesson. Triple check everything!!

Works like a charm if you take your time and use 2-3 second squirts! 3/4-inch lead pipe water service. I was able to freeze with short bursts in about 15 minutes or so. Used an entire can and yes it would leak every so often. I would back off as soon as I saw any drips for a moment to allow it to set and then continue. Just tie off the bottom if you're doing vertical piping like me and maybe even use the extra zip tie but it worked. Product definitely doesn't deserve all of the negative reviews! Snug it up as best you can and take your time.