TUNZE Osmolator Automatic Water Top-Off
Excellent customer service. Had a "failure" alert after cleaning the sump. After notifying Tunze, "Roger" responded promptly and diagnosed water damage. They repaired the unit for free, although water damage is not covered under mfg warranty. Roger even called to inform me that the problem was not in the controller itself, but rather in the wiring. Was impressed that Roger was actually the one who performed the service and took the time to follow up.