I've been looking for a cheap water cooler for my TIG and have found a guy selling 4 second hand TWECO TC900 THERMADYNE WATER COOLERs https://www.mythermadyne.com/thc/en...8Search%3Dcooler%08%23%23%08%23%23%08false%08 at £215 each including shipping. They are working but with no guarantee for the future. A web search suggests that Tweco is part of the Thermadyne group. They have a good reputation and spares are available. However for £350 I could get a new but probably Chinese one from R-Tech which would have a 2 year guarantee. My inclination is to go for the quality one. Any thoughts?