Toilet DESCALER HEAVY DUTY Limescale Remover for Toilet Concentrated Cleaner Formula Remove All Stubborn Stains CalSolve - Dissolve Urine Scale Destroys Smell 8x Doses 200 Grams

Worked really well on a heavily scaled toilet pan. Tried a double dose at first on our worst toilet and it did not magically fix the scaling so was disappointed. A couple of weeks later I was wondering what to do withithe rest of it and that unsightly U bend. I tipped the rest of the pack all in after using hot water as described in the instructions and the morning after using a glove tried cleaning the U bend with a washing up sponge scourer and it all lifted straight off. It looks as good as new again. Much better than fitting a new toilet. I will be buying some more

It is fantastic if you follow instructions correctly. Need to leave the product on for as long as you can. I left it for 24 hours and it worked! Now I don’t need to change the toilet bowl.

We live in the South in a very hard water area so our toilet often needs a good clean due to the limescale that builds up. This product is easy to use. Firstly, I boil a filled kettle and put the boiled water down the loo. I do this twice and then I put an amount of this in the water, stir it in the water and leave it overnight. It really works.The only negative comment I would have is that the container is tiny and also a funny shape. (See photo.) Quite difficult to get a spoon in the container. The last time I ordered this product the tub that came was huge and lasted me ages so I was quite surprised when this very small container arrived. Maybe they are saving on packaging? The product is expensive but does work.

Absolute rubbish. Did everything it said to do, twice, with extra amount each time. Didn't shift a thing.

First, some background: I had no issues with toilet staining until I started using a reasonably popular rim block product which left what I thought at the time was some sediment... I realised at some point that said 'sediment' was not actually being flushed away and then almost overnight, it turned into this really unpleasant massive brown stain around the bottom of the pan under the waterline. I tried your basics like bleach with limescale remover, cola, scrubbed it etc and all that happened was that it got worse. I could not have made it up! It started really stressing me out because I could not get rid of it. As a last ditch attempt before trying to drain the toilet and get right in there with a pumice stone, I did a search for an industrial product and this turned up. I thought a tenner was worth the risk and so I bought it. Be warned, this container only contains 8 doses if you are using it to keep stains at bay fortnightly as the packet says; otherwise, for heavy staining, it seems to be one dose. In any case, I used it all because by this point, the staining was pretty industrial and I was prepared to do almost anything to get rid! I boiled my kettle and poured the contents into the toilet, followed by the powder, stirred it around and left it overnight {from about 11:30pm - 8:45am}. I lifted the lid in the morning and the stain still appeared to be exactly as it had been other than a slight discolouration of the water. I was absolutely gutted because I thought it had been as useless as everything else I had tried... Thinking I was just going to have to get in there with a pumice stone and utterly disheartened, I flushed the chain... Imagine my amazement when the bowl completely cleared...! There was a tiny bit of residue left which I used the brush on a bit half-heartedly but even that lifted... I am so pleased with this product. Yes, it's expensive but in my opinion, well worth the money. The container is a stupid shape however, that just means it fits through the letterbox so I don't really mind that... Thank you, CalSolve, thank you!!UPDATE 07/11/23 Well the scale stain returned so I thought I would experiment with the CalSolve and just used the 2 teaspoons or so. I am delighted to report that it worked a treat. So I will continue to use it as directed :)

Took a while to realise it and brave a review.BUT - this is just an expensive way to but soda crystals.Sorry!

Saw mixed reviews but thought I would take a chance as I had tried bleaching and scrubbing the toilet but it just wouldn't work as the stain was very stubborn. Followed the instructions but could only leave it for about five hours (it does say up to 12 hours) which I thought wouldn't be enough.. but to my surprise after a scrub with the brush and a flush it looked like new and I really wish I had done a before and after photo. Highly recommend.

I bought this because I had used it a couple times previously but it had become hard to find.I also am pretty sure they've changed the product, maybe to fit with regulations or safety or something?This product is "100% Citric Acid" but I am '100%' sure that it was another form of acid before because I remember being cautious the first time, while obviously citric acid wouldn't have worried me in the slightest.I also recall this product used to foam too, it no longer does. I boiled the kettle and poured it into the toilet, then I dropped in 3 heaped spoons of the Calsolve and watched as it did...nothing.No fizzing, no nothing, just a higher pH of the water, it did loosen some stuff but it didn't get my toilet sparkling like the old stuff did.So my question is...what gives? Why change it? This product has literally went from being one of the most powerful toilet cleaners to literally a lemon. Very disappointed.I do not recommend this product, if you can find the original/stronger Calsolve elsewhere then get that.If you found this review helpful, please consider slapping that helpful button :D