When you have a pool it's important to know how and when to change your pool filter sand. In this video, Andrew Donkin will be showing you just that. To get the sand, visit: https://goo.gl/9vmC8t To get the sand extractor, visit: https://goo.gl/v8qPvn To get the Bluechem Gel Sparkle, visit: https://goo.gl/X1FgGE | Builderssa

1.3K views · 32 reactions | Hello Everyone! Here a quick overview on how sand filters are used for solid removal. The MPV (Multiple- port- valve) can also be used in different configurations to for specific scenarios. Check out this new video now! PS: We conduct monthly courses for those interested in mud crab aquaculture, for more info. Do drop us a PM with your email, full name and mobile number. | RAS Aquaculture | Facebook