Q-SOL  

Q-SOL is an aqueous cleaner designed for environmental and industrial purposes. 

It is an advanced, non-toxic cleaner based on non-hazardous and biodegradable formulation with mild pH, without using any strong inorganic acids.
It is safe to be used for a water cleaning system.
 

And, with dilution rates as high as 1:128, Q-SOL also offers a low price.