Some water softeners, installed in the home's water network, use salts to act on limescale, which is harmful to our plumbing systems but useful for our health.

If these salts pass into the water after softener treatment, they are incompatible with gravity filters. Their concentration will have a clogging effect on the micro-channels contained in the filters, and what's more, these salts are not intended to be ingested.

To find out whether or not your softener is compatible with our filters, simply check that the water leaving the softener is drinkable (see the manufacturer's information on this subject). This information should be included in the documentation for your appliance. If the water leaving the softener is drinkable, it is either because the softener does not use salts (other techniques exist) or because the salts are treated before the water passes through the network. In this case, and only in this case, you can use the water from your softener with Ultimate Star Filter® water filters.

Note: some softeners are equipped with a by-pass that allows water to be collected before treatment by the softener. In this case, you should use this water to refill your Star Water Filter® system.

If you are in any doubt, please do not hesitate to contact our sales department, by telephone or by using our contact form.