Results 1 to 8 of 8
Plumbing & Plumbers Forum - Calshot Inhibitor - Williams & Co.

Calshot Inhibitor - Williams & Co.

Discuss Calshot Inhibitor - Williams & Co. at UK Plumbers Forums; Well I used the Calshot Cleaner yesterday. It had been in the van for quite a few days so was nice and cold when I took it in. The calshot ...
  1. #1
    UK Plumbersforums Trusted Advisor.

    Mike Jackson's Avatar
    Join Date
    Nov 2008
    Location
    Hastings
    Posts
    5,495
    Thanks
    59
    Thanked 643 Times in 590 Posts

    Default Calshot Inhibitor - Williams & Co.

    Well I used the Calshot Cleaner yesterday. It had been in the van for quite a few days so was nice and cold when I took it in. The calshot comes in a concertina type bottle that you squeeze to get the contents out. It is supplied with a threaded spigot and a plastic 1/2" FI connector. The spigot has a check valve fitted. The idea is to screw the connector onto the threaded spigot and then screw the whole thing onto the filling valve on the heating system. This was where I cam slightly unstuck, The filling point was pointing upwards under the boiler and there wasn't room to screw the calshot on. Not to be defeated I used a straight coupling to adapt the thread to 1/2 MI so that I could connect the bottle to the filling loop. It wasn't possible to connect the bottle straight to the filling loop as the end of the thread was flat.

    The instruction state that the pressure should be dropped on the system before the cleaner was injected but I decided to see if I could force the cleaner in with the system under pressure. No go, I had to lower the pressure so that I could squeeze the cleaner in. This is a distinct disadvantage over products like the fernox express range etc. which will go in under pressure although the calshot does retail at a lower price.

    When I stopped squeezing the container it started to refill from the heating system so I had to squeeze the cleaner back in and shut off the isolating valve quickly. This was a bit awkward as I had to use both hands to squeeze the container because I was connected to the filling loop rather than the rigid valve. The check valve is obviously not that effective.

    In all not a bad product, not as easy as the aerosol type products to inject into a system but does the trick at a lower price.

    In all honesty it's not something that I would look to buy myself as I have made an injection pump from a garden sprayer that enables me to inject the normal chemicals in under pressure without having to pay the premium price of an aerosol product.

    For someone that only uses CH chemicals very rarely it's not a bad product but for someone doing it on a regular basis it's a bit too much faffing about. Strikes me as more of a DIY product if I'm honest.
    Gas Safe Registered Engineer for all your Domestic gas, Heating and plumbing needs in Hastings, East Sussex. Check me out on the Gas Safe website, reg. No. 537192.

    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please dont be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.

    By the way I have a Land Rover.

  2. The Following 4 Users Say Thank You to Mike Jackson For This Useful Post:


  3. #2
    ** UKPF Sponsor **
    Ray Stafford's Avatar
    Join Date
    Sep 2012
    Location
    Fareham
    Posts
    10,089
    Thanks
    1,834
    Thanked 1,479 Times in 1,209 Posts

    Default Re: Williams & Co product review thread

    Quote Originally Posted by Mike Jackson View Post
    Well I used the Calshot Cleaner yesterday. It had been in the van for quite a few days so was nice and cold when I took it in. The calshot comes in a concertina type bottle that you squeeze to get the contents out. It is supplied with a threaded spigot and a plastic 1/2" FI connector. The spigot has a check valve fitted. The idea is to screw the connector onto the threaded spigot and then screw the whole thing onto the filling valve on the heating system. This was where I cam slightly unstuck, The filling point was pointing upwards under the boiler and there wasn't room to screw the calshot on. Not to be defeated I used a straight coupling to adapt the thread to 1/2 MI so that I could connect the bottle to the filling loop. It wasn't possible to connect the bottle straight to the filling loop as the end of the thread was flat.

    The instruction state that the pressure should be dropped on the system before the cleaner was injected but I decided to see if I could force the cleaner in with the system under pressure. No go, I had to lower the pressure so that I could squeeze the cleaner in. This is a distinct disadvantage over products like the fernox express range etc. which will go in under pressure although the calshot does retail at a lower price.

    When I stopped squeezing the container it started to refill from the heating system so I had to squeeze the cleaner back in and shut off the isolating valve quickly. This was a bit awkward as I had to use both hands to squeeze the container because I was connected to the filling loop rather than the rigid valve. The check valve is obviously not that effective.

    In all not a bad product, not as easy as the aerosol type products to inject into a system but does the trick at a lower price.

    In all honesty it's not something that I would look to buy myself as I have made an injection pump from a garden sprayer that enables me to inject the normal chemicals in under pressure without having to pay the premium price of an aerosol product.

    For someone that only uses CH chemicals very rarely it's not a bad product but for someone doing it on a regular basis it's a bit too much faffing about. Strikes me as more of a DIY product if I'm honest.
    Thanks Mike for such a detailed and thoughtful review. If thats the standard of reviewing that we can get on the forum, I have am sure that we can keep getting products to review from a range of manufacturers.

    Smashing job - thank you.
    Williams & Co - Strictly Trade Only Plumbing & Heating Supplies. If you are trade, try our online store at www.tradeonlyplumbing.co.uk . Registration and proof of trade status required - sorry, retail customers are not welcome. We are proud to be an accredited Living Wage Employer. Find your nearest branch here: Branchfinder


  4. #3
    Forum Thug



    super-mod
    croppie's Avatar
    Join Date
    Jul 2010
    Location
    Lurking somewhere, generally up to no good........
    Posts
    23,718
    Thanks
    1,537
    Thanked 1,834 Times in 1,672 Posts

    Default Re: Williams & Co product review thread

    Calshot cleaner and inhibitor.

    Finally got the chance to use these on a domestic system this week. Unlike Mike J I had plenty of space to manoeuvre. The chemicals are fairly easy to dispense if, like me, you have bear paws. I can see how there would be a problem with the bottle back filling unles you're working through a non return valve as the bottle non return valve doesn't look to seal too well.

    The chemicals themselves are of a muchness. The delivery method is a nice idea but I think it.needs the nrv looking at.

    Would I buy it?

    I probably would as it is compact and fairly simple to use. The clincher for me with this over aerosols is the lack of a propellant. And the old hippie that dwells within me likes that.

    Thanks again Ray.
    Propino Tibi Salutem! Usque ad Mortem Bibendum!

    Croppie
    (By the way, I'm commercial!)


    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal
    .


    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please don't be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.


  5. The Following User Says Thank You to croppie For This Useful Post:


  6. #4
    ** UKPF Sponsor **
    Ray Stafford's Avatar
    Join Date
    Sep 2012
    Location
    Fareham
    Posts
    10,089
    Thanks
    1,834
    Thanked 1,479 Times in 1,209 Posts

    Default Re: Williams & Co product review thread

    Thanks Croppie. I will pass on the feedback regarding the NRV to the manufacturers.
    Williams & Co - Strictly Trade Only Plumbing & Heating Supplies. If you are trade, try our online store at www.tradeonlyplumbing.co.uk . Registration and proof of trade status required - sorry, retail customers are not welcome. We are proud to be an accredited Living Wage Employer. Find your nearest branch here: Branchfinder


  7. #5
    Plumbers Arms member JCplumb's Avatar
    Join Date
    Mar 2012
    Location
    Bolton
    Posts
    2,097
    Thanks
    73
    Thanked 241 Times in 236 Posts

    Thumbs up Re: Williams & Co product review thread - Calshot Inhibitor

    Had the chance to use one of the Calshots Ray provided last week but have been 'busy' so not posted a review until today.
    Added a radiator to my mums house last Friday, the heating system is only 3 years old and didn't need cleaning but I did drain it down with the intention of renewing the inhibitor.
    Hung and piped up the radiator, fitted everything except the blanking plug then screwed the Calshot in and squeezed. It was ridiculously easy to be fair.
    There's not really much more that can be said, if the system isn't under pressure these are ideal and come with everything you need, no mastik gun or funnel contraptions required.
    I have heard of issues where these are difficult to use when systems are pressurised but to be fair I'd usually release pressure and drain off a pint or so before adding inhibitor to a system, if a system needs inhibitor then I'd say it's a fair trade off to add a little oxygenated water in the process.
    Thanks Ray, I will be keeping a small stock of these as they are cheap enough and easy enough to use in the right circumstances. I also like the fact that they're a 1 shot deal and you just bin (recycle?) the container instead of having more than you need and ending up with half full tubs sloshing about.

  8. The Following User Says Thank You to JCplumb For This Useful Post:


  9. #6
    ** UKPF Sponsor **
    Ray Stafford's Avatar
    Join Date
    Sep 2012
    Location
    Fareham
    Posts
    10,089
    Thanks
    1,834
    Thanked 1,479 Times in 1,209 Posts

    Default Re: Williams & Co product review thread

    Thanks JCplumb. Glad it went well.

    Ray
    Williams & Co - Strictly Trade Only Plumbing & Heating Supplies. If you are trade, try our online store at www.tradeonlyplumbing.co.uk . Registration and proof of trade status required - sorry, retail customers are not welcome. We are proud to be an accredited Living Wage Employer. Find your nearest branch here: Branchfinder


  10. #7
    UK Plumbersforums Trusted Advisor.

    kay-jay's Avatar
    Join Date
    May 2008
    Location
    Bolton
    Posts
    7,225
    Thanks
    811
    Thanked 602 Times in 573 Posts

    Default Re: Williams & Co product review thread

    Calshot inhibitor

    Finally got a chance to use this product at the weekend.
    Added via radiator vent. The so called nrv is a bit cheap as others have said. Wasn't really a problem fir me though as system was empty.

    Simply screwed bottle to rad vent and pushed the concertina bottle.
    All nice and easy customer even commented on what a great idea it was.

    I found it was easy to use and simpler than most other methods. There was no spillage either. My only criticism is that there is about 50ml left in the bottle which you can't get out without pouring it as if it was a normal bottle if inhibitor which of course defeats the object...

    All in all a decent enough product but if it came down to it would i spend the extra couple if quid on it???

    Possibly not.


    For me the biggest thing in this products favour is that a full dose us 500ml not a litre which means i can pour it all into a tf1.

    I would like to see a range if 500ml dose bottles available generally.
    IN CERVESA FELICITAS - IN BEER THERE IS JOY



    The horse and mule live thirty years and nothing know of wines and beers,
    But sinful, ginful beer soaked men, live to three score years and ten


  11. The Following User Says Thank You to kay-jay For This Useful Post:


  12. #8
    ** UKPF Sponsor **
    Ray Stafford's Avatar
    Join Date
    Sep 2012
    Location
    Fareham
    Posts
    10,089
    Thanks
    1,834
    Thanked 1,479 Times in 1,209 Posts

    Default Re: Williams & Co product review thread

    Quote Originally Posted by kay-jay View Post
    Calshot inhibitor

    Finally got a chance to use this product at the weekend.
    Added via radiator vent. The so called nrv is a bit cheap as others have said. Wasn't really a problem fir me though as system was empty.

    Simply screwed bottle to rad vent and pushed the concertina bottle.
    All nice and easy customer even commented on what a great idea it was.

    I found it was easy to use and simpler than most other methods. There was no spillage either. My only criticism is that there is about 50ml left in the bottle which you can't get out without pouring it as if it was a normal bottle if inhibitor which of course defeats the object...

    All in all a decent enough product but if it came down to it would i spend the extra couple if quid on it???

    Possibly not.


    For me the biggest thing in this products favour is that a full dose us 500ml not a litre which means i can pour it all into a tf1.

    I would like to see a range if 500ml dose bottles available generally.
    Thanks Kay-Jay. Glad it went well. With our BOGOF offer, you don't even have to worry about your pocket either!
    Williams & Co - Strictly Trade Only Plumbing & Heating Supplies. If you are trade, try our online store at www.tradeonlyplumbing.co.uk . Registration and proof of trade status required - sorry, retail customers are not welcome. We are proud to be an accredited Living Wage Employer. Find your nearest branch here: Branchfinder


Everybody loves a good deal: Deals and Discounts on Dozens of Powertools!
Everybody loves a good deal: Deals and Discounts on Dozens of Powertools!

Similar Threads

  1. Looking for experience
    By Varley in forum Plumbing Forum
    Replies: 2
    Last Post: 16-06-2014, 11:17 PM
  2. Williams & Co product review thread
    By BOD in forum General Off-Topic Chat
    Replies: 46
    Last Post: 01-04-2014, 09:56 PM
  3. Perfect Pump Valves - Williams & Co.
    By JCplumb in forum Product Reviews
    Replies: 1
    Last Post: 10-04-2013, 10:22 PM
  4. first dealings with Williams & Co
    By mutley racers in forum Plumbing Tools
    Replies: 19
    Last Post: 18-03-2013, 02:45 PM
  5. Freebiie alert! Calshot inhibitor and cleanser
    By Ray Stafford in forum Central Heating Forum
    Replies: 38
    Last Post: 03-01-2013, 08:30 PM
  6. Williams Sponsor UKPlumbersForums.co.uk
    By Dan in forum Links, Forum Updates, News and Site Suggestions
    Replies: 19
    Last Post: 12-11-2012, 04:19 PM

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!


Try our Talk Electrician Forum and our popular Tilers Forums for more free advice from professional tradesmen.
Tens of thousands of tradesmen and over 2 million combined posts.


Plumbers Forums is a community-driven forum shared between all members.