​​​​​​​Replacement of tubes for liquids

[iig]

Good afternoon! In the annual maintenance of the Frontier 550, I want to replace all the tubes that carry the solutions. Unfortunately, I do not know what material they are made of. In Leroy Merlin, there are PVC pipes of various diameters and wall thicknesses. Can they be used? How aggressive are the solutions for developing and fixing? Thank you in advance.

 

[Minilab service]

BF is very agresive. Many times saw destroyed sensors, pumps, rollers, heaters and other parts.
STB is not agresive. There mainly is water with tablets.

Do not think that you need to change pipes. Never did it. Just enough disconnect, clean and wash them.