Can i use a saniflow from the log cabin at the end of my garden to the main house drain?

It can be done but without looking it’s hard to tell mate

After reading this on Google the distance doesn't sound like a problem... other smaller models might be suitable too. (Sanicubic is part of our professional range and is a pump for discharge of waste from multiple WC's and other waste water producing appliances. The waste is pumpedthrough 50mm pipework.It pumps up to 11m vertically or 100m horizontally or a lesser combination of vertical and horizontal.) The deciding factor is the fall over thie distance, you will need a consistent down hill slope from toilet to waste connection. It might be slightly more expensive but depending on fall, you might be able to Tee into main waste and run a 4" pipe to the out building and not need to pump waste

It can be done but your have to make sure the pipe doesn’t freeze in winter

Hi, The Saniflo is a great machine. The fall and distance are fine and I suggest after the initial 22mm outlet from the machine you fit a plastic 22mm to 32mm Adapter ( from Plumbcentre) and run all the underground pipework in 32mm plastic waste pipe.. This will allow you to fit into the main waste pipe with solvent welded pipework which is stronger, it is also better from a blockage point of view. Pop in a rodding eye at the chalet end and Bobs your uncle. Don’t forget to protect the underground pipe from spades and forks. Best of luck. Guy