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There are a few factors to consider when you determine what ScaleBlaster unit you
should get:
Water hardness level
Refer to the map on the right to determine your water hardness level. Of course,
this is a general inductor of what your actual water hardness is. If you have
a well, your water hardness readings will actually be much higher than shown on
this chart. City water will differ from well water. For reference:
gpg= grains per gallon. ppm= parts per million and is the same a mg/L
Pipe Size -The size of the incoming water
supply line going to your house is critical in determining the proper unit. The SB-150 will
handle up to 1 ¼” pipe, and the SB-175 and SB-XX will handle up to 1 ½” pipe.
If you have 1 ¼” pipe and very hard water over 14 gpg, it may be best to upgrade to the SB-175 or SB-XX.
Pipe Type - The SB-150 and SB-175
will work on copper, cpvc, pvc, or pex pipe. If the house has galvanized, or magnetic
pipe (when a magnet will stick on the outside of the pipe), a small section of pipe
should be cut out where the signal cable goes and replaced with pvc or copper pipe.
Size of house - If the house
is large (over 5,000 square feet) or has multiple levels or several bathrooms,
the SB-XX should be installed.
Other Factors
Tankless Water Heaters - We recommend
the SB-175 or SB-XX with tankless water heaters in hard water areas. The SB-XX has
two signal coils, and one coil should go right before the tankless and the other
coil can go on the incoming cold water line, or after the tankless water heater.
SB-XX model - The SB-XX is ideal
for very large houses and very hard water over 25 gpg. It is also ideal for those
on well water that want to protect their pressure tank. Install one coil before
the tank and one after.
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