This thread is progressing nicely. We've established it is possible with some "risk".
The other thread you refer to is Zoot the Hoot. I believe he has immigrated to a warmer climate. This solved his ASHP issue immediately.
No.
Because the liquid will run ahead of the solid from the WC. So eventually you will get a blocked pipe. Saniflo confirmed this method was a bad idea.
This type of thing for the black macerator . Block the conventional inlet and use a low one ( so I get the fall from the Wc macerator )
https://www.plumbworld.co.uk/flo-force-max-macerator-pump-101425-1252355
Thinking about it .
if the vertical black pump pipe is full of ? and it fails would you be able to turn the valve to isolate and stop it running back ? . Trying to think of a guaranteed way to isolate or even drain the pipe in a “nice” I.e controlled way .
Should the pipe run from wc macerator to black macerator be a larger bore ? . My logic being if black macerator blocks ( for example ) the pipe will hold the contents .
Or am I overthinking it now ? ?
The horizontal pipe at the top that goes into the soil pipe . Should both outputs go into that 1 pipe ? . Or better to have a independent pipe into the soil I.e 2 horizontal pipes
SWMBO was over again ffs
Current plan is this .
Macerating WC pumps ? into grey water macerator which then dumps into soil pipe . Meanwhile sink/washer etc. grey water uses a seperate pump .
I’ll put valves on both vertical runs so I can avoid grey or ? running Back when they break ( not if ) .
I’ll set a zwave sensor on macerator that receives the ?. So at least if it doesn’t trigger I.e draws too little current or indeed too much than at least HA can inform me .
I’ll probably put a valve on the input pipe . So when it busts can turn inlet pipe and outlet pipe off . My other plan was when it fails I see no reason why I can’t drill a hole straight into the saniflo unit to drain it of ?. Trying to minimise the fun when it goes wrong . Apart from relatively easy access to the pumps any other suggestions to take into account when failure strikes ?