The way I use PET (mentioned earlier in thread) is that I rinse with hot water straight after pouring a beer. Rinse it a couple of times, then leave a few centimetres of water in the bottle and place the lid back on (loosely). I tighten up lid a day or 2 later (ie. once hot water has cooled) and store away in a cupboard or box. Leave those bottles till next bottling day. On bottling day I discard that water. Clean bottles with perc. Rinse. Then sanitise with no rinse.Hostage_85 said:Why not use a Bottle tree for PET?
So with that method a tree is not needed at all.