Had my round spar for about three years. Everything fine, but outer cover now starting to delaminate and minor tears around the securing clips for the lid cover. Heated it up several times during recent spell of great weather, but heater element has finally gone. From reports I've read, I seem to have done well to have it last 3 seasons. Problem now is that the UK spares distributor doesn't sell just the heater element, only the replacement pump at £200! Has anyone got a link to a company that sells the elements? The whole heater pod looks as though it can be unscrewed and separated, so it can't be that difficult to replace this component. Has anyone tried recently?