Cleaning Tank with Vinegar

[reeftilldie]

I just broke down my 30g tank yesterday and soaked with vinegar. On the back wall ( where i used to dosed 2 parts) there is a thick coat of white stuff ( i think it's calcium precipitation ), Tank has been soaked overnight , i try to use metal razor blade to scratch it off but it wont come off.
Please help

 

[Brew12]

I just broke down my 30g tank yesterday and soaked with vinegar. On the back wall ( where i used to dosed 2 parts) there is a thick coat of white stuff ( i think it's calcium precipitation ), Tank has been soaked overnight , i try to use metal razor blade to scratch it off but it wont come off.
Please help

For really thick deposits it can take multiple applications of vinegar.

 

[juicemanatx]

I put the tank on its side, put a towel over the thick calcium buildup, then soak the towel in vinegar.

Come back in 30 minutes or so and it'll come right off!

 

[Randy Holmes-Farley Verified Community Expert]

Muriatic acid diluted 1 part acid into 9 parts cool fresh water is far faster than vinegar, but you need to be very careful with the undiluted acid.

 

[reeftilldie]

Thank you everyone, i will try step by step, hope it comes out.

 

[reeftilldie]

Muriatic acid diluted 1 part acid into 9 parts cool fresh water is far faster than vinegar, but you need to be very careful with the undiluted acid.

Thanks Randy, where can i get muriatic acid? is it on the shelf?

 

[juicemanatx]

Thanks Randy, where can i get muriatic acid? is it on the shelf?

Home Depot, Lowe's, Pool Supply

 

[juicemanatx]

I doubt you need that though.

 

[reeftilldie]

I doubt you need that though.

thank you juiceman sir

 

[Randy Holmes-Farley Verified Community Expert]

It's what I and many others use to clean equipment. Deposits come off a pump in 15 minutes, not overnight.