stans rims with yellow tape and valves in, nonust high roller, one side of the tyre is ftted into the rim nice and tightas i put a tube in first blew it up etc to seal the rim tape on nice a tight as per stans video. removed innertube and put in valve. how do i get a good seal on other side? to allow inflation

cheers

Pump like buggery.

When I put tyres on my Stans rims as you've described one went on straight away with a track pump but the other needed a compressor at a friendly car garage to get it to seat. If you haven't put the sealant in yet then you could try a CO2 inflator thingy.

soapy water / watery soap

Compressor makes it much easier…and soapy water or foam on rim and tyre to help all slide into place.

Benn's garage, over the road from Sainsburys.
Give us a shout if you need the presta>>fatthing adaptor.

Own a compressor. And not just one of those little tyre inflators they sell in B&Q, a proper one with a reservoir and decent airflow. Makes it easy.

Try to convince the seal that tubless is the future – point out the combined advantages of lower rolling resistances and an absence of pinch punctures, especially at low pressures. If none of the above work, try bribing with fish – should do the trick.