Sanitop installation query

Hi there!

I am planning a new bathroom on the 1st floor of my house. It's on the front of the house, so its not practical to send out a regular waste pipe. Long story short, ive managed to blag myself a free Saniflo (Sanitop model) macerator!

Now, I want to install a loo, basin and also a bath in the new bathroom. I will put a shower into the bath and install a screen - i will eventually get rid of my main downstairs bathroom and have this new one as the main one, as a result I want a bath rather than just a shower tray.

So, as I have the 3 things to drain waste from and just the one sanitop unit, the guide says that its for a loo and basin - is there any way that I could also use it to drain the bath? If im on dodgy ground, I will probably end up getting a second one just for the bath, or maybe I can get one that would do all 3....the bath itself wouldnt be used that often, really just the shower.


My second question is about the waste, I had been dreading running waste pipes through the house under the floor boards, but the guide to the macerator says I can pump upwards up to 5m. So, I just had a thought that perhaps I could just send the waste pipes straight up 3m into the loft's floor space, then along (at a slight decline as per instructions) and out the back of the house where the waste hopper is. I will be putting up a partition wall, so I could send the waste pipes straight up through then. Does this sound reasonable?

Any help would be massively appreciated!

you can not discharge in to hopper

Needs to be in to a waste drain.

You cannot rely on just a saniflow for your house either. It's a breach of the regs

you must have a normally plumbed in toilet in addition to saniflow. how do you flush if there is a power cut?

are you notifyig BCO

yes you need to notify building control as dancinplumba says