Thetford toilet C220

My wife says "platform heels"!

PS: she's 5'9"

Cymro

Sorry, Billy Boy - my reply was a bit facetious. 

My wife (who is also 75 - and doesn't wear platform heels either!) mentioned that she has a similar problem when travelling in the front PAX seat, unless it's tilted forward. 

As to the WC and your original question, I don't know if you use levelling wedges, but if so perhaps you could store one of them in the bathroom,  upon which your wife could rest her feet. Or another thought is the little plastic step which our grandson (now aged 5) used to use when spending a penny. Can pick one up at a charity shop, usually.

Cymro

My Wife rests her feet on a polystyrene block wrapped and sealed in a plastic bag (its not weight bearing just to sit comfortably when needed.

In the front passenger seat she found a footrest that office workers use under their desks (apparently) the foot part rocks back and forth.

Pete

Thanks, BB. 

I'd suggested those possible solutions because (a) the height of the WC cannot be adjusted, so in the alternative the answer must be something a few inches high which can rest on the floor, and which can be easily removed; and (b) it would be best to use something which you already carry, rather than adding further weight. Do you carry a small toolbox / drill case?

Cymro