When a toilet becomes blocked, or is draining slowly, most people try using a chemical product to clear it.
If this doesn’t work, be wary of using another product. Mixing different chemicals can damage primary plastic drainage pipes. Chemical reactions can take place that could thin pipes by corrosion.
Excessive use of strong drain cleaning chemicals over time can also cause damage. If a toilet drain gets blocked regularly, a drainage engineer should investigate potential issues. This could help avoid bigger problems in the future.