Pure-Pro Alkaline Water Filter Cartridge - All Questions

Ideally, we recommend that you should sanitise the tank annually. If the tank has not been regularly sanitised then it may become difficult to achieve and the tank may then need to be replaced. We have a sanitisation device available here: https://www.osmiowater.co.uk/sanitisation-kit-for-reverse-osmosis-systems.html there are instructions on its use on the product page. To sanitise the whole system you can sacrifice the old pre & post filters (removing the RO membrane) and place the sanitisation device in the feed-in water tubing (as per the video on the sanitisation kit product page) and then replace all the filters after sanitisation. Please contact us on 0330 113 7181, or at info@osmiowater.co.uk and we will be happy to provide further information.