Corrosion can cause catastrophic problems with these systems, potentially leading to system failure and leakage (pinhole size leaks). The test kit includes testing for pH, conductivity, and microbiological levels (total count of bacteria & sulfate-producing bacteria). Saltwater ingress can occur when the system has been used (freshwater) and is then bypassed directly using seawater. If this occurs, the system is flushed through with freshwater. A chloride test is provided to ensure seawater is not present, which can cause corrosion problems.

Any part of the system may be subjected to freezing temperatures in service. Anti-freeze (mono-ethylene & mono-propylene glycol) is used as standard to protect these systems from freezing. A glycol refractometer is supplied to ensure the systems are being maintained at the correct freeze point or percentage product.