January 11th, 2010 at 4:19 am » Comments (0)

This is a Cal Spa brand hot tub control system, prior to the company switching to Balboa Instruments controllers. We call this a 'Black box PS series control system'. Normally controlled by air push buttons, it is found in thousands of Cal Spas throughout north america. This heater replacement was a little difficult due to the element being seized up with the retaining nuts.   more »

January 11th, 2010 at 4:12 am » Comments (0)

Replacing Flow Thru Style Heater Elements Home Safety Warnings! Remove Power from the spa/hot tub BEFORE performing thisprocedure.  Failure to comply with this requirement, can lead toelectrical shock and/or electrocution! Disclaimer Theinstructions here are intended for general reference only.   Many hot tubs and spas are different from the one depicted here, and may require [...]   more »

January 11th, 2010 at 2:49 am » Comments (0)

Just a basic photo markup showing the manner of water flow through a 1990's model Watkins Hot Spring Spa Low Flow Heater.   more »

January 11th, 2010 at 2:40 am » Comments (0)

Photo markup of basic concept of operation of a Dimension One style spa heater and circulation pump from the mid to late 90's.   more »