Correct location for UV Light in Garden Ponds
Ultra violet lights and biofilters Must the UV be placed before the biofilter?
In theory it does not matter at all but in practice
if you have a simple box type filter is must be before the filter. Reasons are:
The UV works under small pressure - water must be forced through it while the
biofilter drains under gravity.
This means less maintenance and also less
expenditure on replacing transparent pipe when it becomes clogged with algae. |




