6 - The Solo Pure Water System Operation and Maintenance Manual
1. Strong bypass flow is normal during system operation.
This water is the bypass water and it contains a very high
TDS. This water is non-potable but is also not harmful to
plants. Do not drink bypass water.
3. Milky white bypass flow is a common occurrence when
starting up the system or using a new RO membrane. It is
trapped air being pushed out of the filter housing and will
stop once the air is gone.
Water Coming Out Of Bypass Hose
1. With the source water off, check that the fitting is
properly tightened. Tighten until you feel the gasket
engage. All fittings are leak free hand tightened.
Do not overtighten.
2. Unscrew the leaky connection. Check the gasket in the
female fitting for damage or deformation. Replace
gasket if necessary. Replace gasket before tightening
fitting. Wrench can cause damage if over tightened.
3. Check brass fittings for damage or deformation. If
necessary replace brass fittings. Replacement parts
can be ordered from ABC or bought from a local store.
The plastic hole size is ½” national pipe thread (NPT)
and the Brass fitting connection is a standard ¾”
Garden hose thread (GHT). Fittings should be attached
with an adhesive to prevent leaks. We recommend
Liquid Nails Perfect Glue from Home Depot.
Leak Between Brass Garden Hose Fittings
1. Unscrew leaky brass fitting.
2. Check brass fittings for damage or deformation.
If necessary replace brass fittings. Replacement parts
can be ordered from abc or bought from a local store.
The plastic hole size is ½” national pipe thread (NPT)
and the Brass fitting connection are a standard
¾” Garden Hose thread (GHT).
3. Fittings should be attached with an adhesive to
prevent leaks. We recommend Liquid Nails Perfect
Glue from Home Depot. If damaged, use Gorilla Glue
Two-Part Epoxy to help seal cracks.
Leak Between Brass Garden Hose Fitting And
Plastic Housing
13. Leaks
1. Retest your water sample. When you get a higher than
expected reading on your handheld TDS meter, it is a
good idea to use the water you are testing to wash out
both the measuring lid and the measuring prongs of the
meter itself. Do not get the body of the meter wet, it is
not waterproof. Minerals can stay in the cup from other
measurements and can make the sample appear to
have a higher TDS than it actually does. Taking multiple
samples ensures maximum accuracy.
2. Elevated TDS levels coming from the RO membrane
can indicate that the RO needs to be replaced. Use your
handheld TDS meter to measure the TDS water coming
out of the RO and compare that to the TDS levels of the
source water. Your RO should have a rejection rate of
over 80%. If the rejection rates are below normal, follow
the step below to ensure that the RO filter needs to be
replaced.
3. Running the Solo system on High TDS source water
will result in higher levels of TDS in the pure water. Adding
a DI filter after the system should remove the rest of the
dissolved solids.
4. If your RO rejection is lower than expected, you can
try running a 10 minute flush. Increasing flow through the
filter housing will help the flushing process. Fully open the
bypass hose and then shut off your system’s pure water
outlet. Run it like this for 10 minutes and then open your
pure water outlet and restrict your bypass to its normal
running setting. Test water coming out of the RO (not the
bypass water) to get the before reading. Check your RO
TDS to see if it is dropping to more acceptable levels.
Repeat the forward flush 2-3 times if necessary to drop
the RO TDS.
5. If your rejection is lower than expected, you can try
running a 10 minute flush. Increasing flow through the
filter housing will help the flushing process. Fully open the
bypass hose and then shut off your system’s pure water
outlet with the provided quick connect valve. Run it like
this for 10 minutes and then open your pure water outlet
and restrict your bypass to its normal running setting.
Check your RO TDS to see if it is dropping to more
acceptable levels. Repeat the forward flush 2-3 times if
necessary to drop the RO TDS.
6. If your TDS does not drop, your system is probably
exhausted. You can continue to use the exhausted
system, as long as the water exiting the system is still
pure enough for your cleaning application. Adding a DI
filter after the system can allow an exhausted system to
still be used longer.
High TDS Coming From The System
