Hi Sub John and Dave.
Two birds with one stone!!
John. thank you very much for your input, but sadly its way over my poor old (74), head, but the thought was there. Cheers.
The solution you offer is simple and practical, as this is my first sub,
i am finding the instructions hard going, for the robbe, not at all teutonic!!
But lateral thinking is being brought into play here.
and i am coping.
It will be an exellent grounding for my next project, what ever that may be,
so there is all to play for, its too easy to get into the cant be bothered sindrome
at my age, "Pensioner Power" is needed.
I will work something out as i go along, i only intend to use internal recharging
now and then. and open up for inspection, on, say a fortnightly basis.
Thanks guys for your input, it will not be wasted.