Roadrunner

Hello! I did Aquahot service this year. I drained the boiler fluid and replaced it - I don’t think anyone had done so before. The previous owner kept thorough records, but nothing regarding the Aquahot. Be forewarned - it holds about 18 gallons. I bought the Century concentrate. I replaced the nozzle, serviced the burner and replaced the faulty float switch. The previous switches were plastic - we replaced it with brass. The original was very brittle and broke trying to remove it. I had to re-tap the threads. It functions much better now.