mold

Where can I find a BSF mold manufacturer in country X ?

We maintain a list of Concrete Biosand Filter mold manufacturers here: http://biosandfilters.info/moldmakers  

If you know a reliable mold manufacturer that is not listed. You can submit their details using this form: http://biosandfilters.info/node/add/mold-maker



Diffuser Basins update and molds with no ledge

The diffuser plate is often a weak link in the BSF.  It gets damaged or bent, has a shorter lifespan and does not always properly protect the biolayer.  We would like to see a better option than the sheet metal diffuser basin - it's hard to make and more expensive.

Video on how to build a steel mold

These videos illustrate how to build a biosand filter steel mold. There are 2 videos, part 1 and part 2.
Please provide feedback using the comments form below!

Can you make the mold out of aluminum rather than steel?

You can certainly build the mold out of aluminum but it will probably cost about 3 - 5 times more and be much more difficult to weld. You have to be a specialty welder to handle aluminum whereas any welder can handle steel. The material cost would also be more.

What is the difference between a rectangular and cylindrical biosand filter?

There really isn't any big difference between the round filter and the square filter.

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