Hello Chaps
Happy New Year to all of you.
I've tried and failed to remove a near-total blockage of scale from within a stainless steel secondary cylinder coil.
I've been using DS-40, and it helped to extract more than half a bucket of chalky deposits, as well as whatever was dissolved in the citric acid. The flow rate, which previously was nearly nil, is now better, but I know there's still a restriction somewhere deep within because the flow rate is still below par. The restriction is at least 1 metre from each end, because I can reach it, but not budge it, with a 1/4" sani-snake.
The owner is facing an horrendous bill unless I can dissolve and/or budge this blockage, so my question is this: is there something better/stronger/quicker than DS-40 that I can use?
For example, will Sulphuric acid be better? If so, where can I get it?
Or is Nitric acid better? If so, where can I get it?
Tia
Happy New Year to all of you.
I've tried and failed to remove a near-total blockage of scale from within a stainless steel secondary cylinder coil.
I've been using DS-40, and it helped to extract more than half a bucket of chalky deposits, as well as whatever was dissolved in the citric acid. The flow rate, which previously was nearly nil, is now better, but I know there's still a restriction somewhere deep within because the flow rate is still below par. The restriction is at least 1 metre from each end, because I can reach it, but not budge it, with a 1/4" sani-snake.
The owner is facing an horrendous bill unless I can dissolve and/or budge this blockage, so my question is this: is there something better/stronger/quicker than DS-40 that I can use?
For example, will Sulphuric acid be better? If so, where can I get it?
Or is Nitric acid better? If so, where can I get it?
Tia