Already know and love MiClearUp? This 5 litre bulk refill holds ten times the volume of our 500ml bottle — around 125 weekly doses instead of 12 — so you can top up less often and pay less per dose. It’s ideal for regular RV and caravan users, larger holding tanks, multiple vehicles, or septic households that need frequent treatment.
In your RV or caravan toilet and sink, pour 40ml (4 capfuls) into your toilet and the same into your sink if you have a grey water tank. Flush with a glass of water to help the microbes reach your holding tank. Do this once a week — a 5 litre bottle gives you roughly 125 weekly doses, compared with 12 from the 500ml bottle.
Initially you may need to dose more frequently while the good microbes establish themselves, especially if you’ve previously used chemical treatments. You’ll know if the odour hasn’t cleared within 24 hours. Over time the microbes form a protective film inside your tank and keep working even after dumping.
At home pour 40ml into a bucket, half fill with water, and pour into sinks, toilets, showers and wash basins once a month. The 5 litre bottle covers roughly 125 monthly doses — over ten years of use for one household.
This keeps your drains clear and odour-free. If you have a septic system, you may need an extra dose during busier periods, like when the family stays over Christmas.
Buying in bulk means fewer bottles, less packaging, and a lower cost per dose than the 500ml starter bottle.