Helix Life Support Pond Skimmer Weir Block Plates Type:Removable Block Plate Not an economic poison and

Not an economic poison and not intended for use as such

For infections that last more than 7 days after standard application

this is normal

porcine animal fat preserved with BHA and citric acid

Helix Life Support Pond Skimmer Weir Block Plates Type:Removable Block Plate Not an economic poison andHelix Weir Block Plates can be used to isolate the Helix pond skimmer from the rest of the pond. Which option you need will depend on whether you want a permanent or removable block plate. The Removable Weir Block Plate allows you to temporarily block the mouth of the skimmer so that the skimmer can be emptied without lowering the pond's water level. The block plate has no gaskets, so it won't keep out all water indefinitely, but it is a quick and