Online repair of RTRP lines carrying cooling water

Your leak can certainly be repaired in situ and under pressure. Some more detail is needed but special resin injected into the water will seal the leak at point of repair. Very high pressure service leaks can be sealed this way. Survey and strengthening of the rest of your pipe and fittings might be advisable and UV set fibre reinforced resin saddle stregthener can make very effective result. I've sent you and e-mail so you can contact me.