cockroach killing poison Insectaclear Strong Phobi Dose RTU (1 Litre)

The Poison is fine, but the 5 Litre **container** is AWFUL!We're having issues with clothes moths. I'd used a 1L bottle or two to do individual rooms, but we decided to blast the whole house with this stuff.The 1 Litre bottles come with a sprayer that screws directly onto them; all fine. But the 5Litre bottle needs to be decanted into the 1 Litre bottle to be used. And it's awful to pour from. I regularly decant various liquids from one thing to another; water bottles, thermos flasks, soap refills, oil refils. I consider myself moderately skilled at doing this.I must have lost ... 3-400ml? of the poison whilst pouring, even with a medium funnel on the receiving bottle - the poison streams down the outside of the 5L bottle.It's not so bad once you've emptied half the bottle, but until you get to that point it's awful.