All the power of DRAINZAP in a single-dose sachet. One 35g sachet treats one blocked, slow or smelly drain — the same foaming clean chemistry that dissolves hair, soap scum and grime within the hour, in a grab-and-go format. No caustic chemicals. No harsh odours. Perfect for a first try, a travel bag, or keeping one in the drawer for the moment a drain slows down.
 
How to clear a blocked shower or sink drain
 
Tear, pour, done: empty the sachet into the drain, add warm water and let the effervescent foam expand through the pipework — dissolving hair, soap scum and organic build-up within the hour (leave overnight for heavy build-up).
 
Septic-safe drain cleaner — no caustic chemicals
 
Like the full-size tub, the sachet formula is septic-safe and gentler on pipes, fittings and plumbing than caustic soda or sulfuric acid products.
1 sachet = 1 drain. Need regular treatments? The DRAINZAP tub gives you 6 doses at a lower cost per drain.