729991 - Invade Bio Foam Concentrate - 1 Pint, 16_Ounce, Orange

Someone recommended their productTo help with little black flies in our house. I was scrubbing and scrubbing the drains but it wasn’t working. This product took care of it in two uses. Now we use once a month.

Exelente product.I was having problem whith drain flies.I pour into my bathroom drain and they gone, no more flies around the house

I thought that it would kill the drain flies in one of two applications. It took three plus the use of a fly swatter. The flies were smaller that a flyswatter. Used that and a fly trap with the Bio Foam to eliminate the drain flyies. Will use it again.

Haven't used it yet. But, it seems to be what's needed.

This stuff just rocks. I use this for my residential and commercial clients and they are very happy with the results.

I used it in a foam sprayer every day and didn't see a change in flies. Even after doubling the strength of the mixture it still didn't work.

In combination with bio foam I raise hell on drain flies

Drain flies breed on the wall of the drain ABOVE the water line. In extreme cases the drain pipe must be thoroughly cleaned using an appropriately sized Drain Brush and scrubbed well; THEN the Foaming Cleaner. Foaming Cleaner alone will have a marginal impact on drain flies breeding on heavily pitted/corroded pipe unless this Brushing/Cleaning is performed first.Another element is the drain trap itself. In situations where folks frequently urinate in a shower they need to understand that showers do NOT have a COMPLETE replacement of fluid as a toilet does. You push the lever of a toilet and the tank dumps 1.6 gallons of water through to the sewer pipe COMPLETELY exchanging existing water with NEW water so the toilet trap way remains relatively clean. Not So with shower or floor drains; new water simply trickles through replacing SOME of the water that was there previously. Over time, these shower/floor drains cultivate a rich environment with urea (from urine), proteins (from residual Hair Conditioners) and botanicals (from shampoos); Drain Flies LOVE and Thrive on all this.In extreme situations, a foul drain needs to be scrubbed, 3-5 gallons of water FORCED through the trap way by pouring rapidly/accurately out of a 5-Gallon pail Directly Into The Drain Opening (wear boots). Some maintenance crews will suck all the brackish (blackened) water out of the trap way with a strong vacuum that’s ONLY used for that purpose, then, empty the vac outside or down a toilet.A clean drain free of pipe sidewall debris and fouled liquid will not support further breeding of drain flies until such time as it becomes fouled again.Insect spray into the drain will have little additional benefit unless the drain remains unused for a few days after application.The bottom line is that if the drain side wall is clean and any previously laid larvae are FLUSHED through the trap way, new breeds won’t form until fouled again.