The natural breakdown of sewage leaves tar and crust deposits similar to the residue in a septic tank.

This can be removed by using Elsan Deep Clean.

Regular use keeps the waste tank like new and helps to prolong its life.

For best results first use Elsan Deep Clean to remove toilet waste deposits then use Elsan Descale to return the tank to “as new” condition.

Note: Do not mix this fluid with any other chemical