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i thought it might not work but it worked well. It took a while to dissolve in the water, poured it into the supply tank and it started fizzing straight away.Turned the taps on briefly every 15 mins or so for the next 4 hours with the immersion heater on topping up the tank occasionally. The product is good.
Verified purchase: Yes | Condition: New
Fernox never fails to eradicate limescale accumulated over many years of hard water - sometimes it takes more than one application but, unlike other products I've tried, it works.
Verified purchase: Yes | Condition: New
This product does exactly what it says on the plastic bucket, it removes lime scale and leaves all surfaces sparkling.
Verified purchase: Yes | Condition: New
Good product tea urn came out like new Would highly recommend
Verified purchase: Yes | Condition: New
Purchased for descaling raw water cooling system on marine engines. Very effective.
Verified purchase: Yes | Condition: New