How to install a new inset bath in a pre-existing frame?

[crisis]

Hello friends, 

I successfully removed the concrete bed under the old bath , without damaging the slab, with the help of some workshop members' advice. I'm back for some help with trouble shooting how to install the new bath. The pics attached show the measurements of the existing bath frame which I was hoping to re-use. I have a bath chosen that fits but I am not sure how to get it into the frame. I can't drop it in because of the tap fittings. There is not enough space to angle it in from the far end. There is not enough room to angle the far lip of the bath under the tap points and then drop it in either. The conclusion I have come to is that I need to remove the whole front side of the frame, slide the new bath in onto a fresh cement base and then immediately position a new, pre-prepared frame on the front side before filling the bath (in this case weighting it down with buckets of water). The bath I want to put in is 1700mm long x 700mm wide at the top. The tub part is 570mm wide Thoughts? Advice? Things I haven't thought about?

Anyone worried about waterproofing I will install waterproof angles around the three sides prior to installing the bath, and pre-install an angle on the pre-prepared outward facing replacement frame. 

Thanks friends

.

[Nailbag]

Once its plumbed in and siliconed its not going anywhere @crisis 

Nailbag

[crisis]

Hello, thought I’d reply with an update to help future readers looking for advice.  I shimmed and siliconed but before this I also lifted bath a smidge and put a layer of silicone between bath and mortar bed. This stopped any slight movement. Included a pic not that it shows you much. The walls and frame have also been prepped for waterproofing

[JacobZ]

Hi @crisis,

Things look to be coming along nicely.

I can't wait to see everything once it has been completed.

Thanks for the update.

Jacob