Not all plastic tanks are acid safe so check the codes for HDPEhttp://www3.sympatico.ca/n.rieck/docs/plastic_codes.HTML
Then TEST a small spot.
Better yet a hard scale or lime remover like CLR may work better and dissolve faster.
A strong Vinegar or a weak Sulphuric Acid solution would also be better than a HCL solution for fish.
Most fish are very pH sensitive so rinse very well...
No
It will remove pigeon feces
I think it might remove rust AND pipes. Be careful with that stuff.
You can remove mineral deposits from your teapot with a mild vinegar solution.
Because the muriatic acid will eat everything else up too, including your pipe!!!
Drain pool and clean with muriatic acid
muriatic acid should work fairly well
Use diluted muriatic acid and a scrub brush to remove efflorescence. Neutralize with water or ammonia.
When you hover your mouse over a specific item, there SHOULD be a small 'x' in the corner. Click it to remove said item from your aquarium. It then goes to your aquarium inventory (which can be acessed in the drop-down menu on the left side of the aquarium). ~Hope it helped~
There are commercial brick cleaners like muriatic acid - but there are also some cleaners that are more people friendly and environment friendly that your hardware store person can show you. Wear eye protection and body/hand protection when using one of these cleaners!!
Although muriatic acid is effective at removing cat odors from cement it is a very dangerous acid. Diluted with water, it makes an effective cleaner for cement.
Muriatic acid will remove concrete from marble. You can also sand it off. Using a scraper may also help to free it.