Bitron 15 UV steriliser failed.
Set up (bit old) Oase Biotec 5 with Bitron 15 UV steriliser. Pump Oase Aquamax 5500. Head to filter about 1 metre. Served me well for many years but when I came to my annual UV tube change I found the tube would not light. It looks like the control gear has given up. Unfortunately spares for this component are no longer available which is a bit annoying because I only renewed the quartz tube last year. C'est la vie.
So, given that I don't want to replace the entire system, my choice is between (a) trying to find a control unit that would let me control the tube in the existing Bitron 15 (i.e. bringing the end cap leads out to an external unit) or (b) sticking a new UV steriliser in the hose leading to the Biotec 5 via the now defunct Bitron 15. I am thinking of this one http://tinyurl.com/cb833bd
I am tending to solution (b) since (a) has more potential for going wrong plus I would have to make a weatherproof box to hold the control gear.
Any advice/comments would be welcome