Thetford Toilet additional Drain pipe

After suffering a frozen cistern pump and blown the bottom off the flushing pump / pipes had seperated. fixing them was simple enough, as i superglued them back together. But i did not want to experience that problem again, and i disconnected the flush pipes from the bottom of the pump to allow the remaining trapped water to escape, no further problems occurred. But i read an article in the caravan club magazzine from Thetfore Toilet, apply online with your chassis no & seriel no from your toilet unit and they supply free of charge the neccessary additional drain pipes to allow you to drain all water from the cistern and pipe work. Great service from thetford as the goods arrived, within 7-10days, with simple instructions for a diy fix. No further problems. Good on you thetford. Has anybody els took up this offer from thetford.