Can anyone that needs low hardness water for Discus,
South America Fishes, Orchids or other Exotic
Species use a Kold Ster-il® for water production?
If your tapwater is low in hardness i.e.
calcium & Magnesium cations (50-150µ/S Conductivity)
then the Kold Ster-il® will remove tapwater's other
undesirable contaminates: chlorine, odors, taste, dissolved
organics, volatile organic compounds, heavy metals, pesticides,
phosphates, particulates, Coliforms and Giardia &
Cryptosporidium. Lower hardness water normally has a 6.00-7.50
pH range and may be adjusted downward through the addition
of dilute i.e. Hydrochloric {HCL 0.5%} or Sulfuric (H2
SO4 0.5%) acids. However, if tapwater is hard (200-1000µ/S)
we suggest the Kold Ster-il® System+ a low pressure
R/O System or a Mixed Bed Ion-Exchange Resin System. The
R/O or D.I. Resins would only remove divalent cations
(hardness) and alkalinity (buffers). Next, allow tapwater
to run through the Kold Ster-il® bypassing the R/O
or D.I. resins. Simply, mix the Kold Ster-il's water filtrate
back into the R/O permeate or D.I. Resin Filtrate obtaining
the desired amount of necessary hardness. The Kold Ster-il®
protects the R/O's polyamide membranes or the D.I. Resins
from organics and heavy metals contamination which greatly
prolongs usable life and increases outputs. Poly-Bio-Marine,
Inc. can supply mixed beds resins in various types and
sizes of filtration pressure vessels. We can even supply
special systems that will produce ultra-pure water (.056µ/S
conductivity) that is sterile and pyrogen-free. For example:
Poly-Bio-Marine, Inc.® uses Kold Ster-il® as a
prefilter to a 200+gpd low-pressure R/O System feeding
a Split Bed D.I. System + ultraFiltration which produces
1.0µ/S Conductivity water (USP Grade Water). Intake
feedwater in the City of Orange, NJ contains high TOC's,
150-250µg/L Copper, 500mg/L TDS, Phosphate based
Cationic Polymer (Morph Lok) which will destroy a 1.0µm
prefilter within 20 minutes usage. Our Kold Ster-il®
protects our R/O system & D.I. Resins so well that
during twice yearly membrane cleaning --- after five years
we have 97-98% TDS rejection rate.