Shock Treat Your Holding Tanks Mid Season Too

Shock Treat

July 2, 2020

Alex Milne and Associates originally developed Head-O-Matic Shock Treat to allow airlines to help clean inside waste holding tanks when they bounce an aircraft on landing, thus helping to prevent odours in cabins.  Today it is used in recreational boats across Canada.

While is it a well known good practice to “Shock Treat” your holding tank on one of the last trips of the season, did you know that it is also worthwhile to do the same treatment mid-season too? Many boaters use it to clean waste tanks whenever tanks or hoses get skunky.  Simply pour one 900ml bottle of Shock Treat into the head, flush, and allow this to slosh about, in the holding tank, to deodarize and whistle clean walls, ceilings, lines and most importantly, holding tank sensors.  Shock Treat is eco-rated.

Shock Treat is available at most marinas and marine chandleries.  For more information visit

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