APSWater.com is updating it checkout. Please call in or Email your orders. Thank you for your patience while we improve our systems.

E-Pure and Nanopure II low resistivity in circulation but not draw off

Your Cart

Shopping Cart Items: 0   Sub-Total : US$0.00    View Cart    Checkout
Shopping Cart Items: 0   Sub-Total : US$0.00
Welcome, Guest ( Login )
Celebrating 35 years providing high quality products and advice.
Our Local Time Is 7:47:04 AM.
Call us at 818-786-0600. We are here to help!
Laboratory Water Systems Laboratory Process Filters Laboratory Equipment Water Treatment

E-Pure and Nanopure II low resistivity in circulation but not draw off

Date : 11/24/2014
From : Art

Question

Couple questions My E-pure system reads about 4 megaohms when circulating but goes up to 18.3 after dispensing for about 1 minute What would case that Also is there a way to filter dnase rnase free and low endotoxin levels using the Epure systems That is are there filters that would generate that purity of water

Answer

What you are describing is the failure of the water to recirculate. That can be caused by a few different things.

1. Bad pump
2. blocked return check valve
3. Bad of high feed pressure regulator

It is most likely the pump.

You can find that here
https://www.apswater.com/shopexd.asp?id=17073&product=PU1090X1A%20+Pump+for+EPure+Water+Systems

The full manual can be found here
https://www.apswater.com/manuals/e-pure.pdf

In order to make RNASE and DNASE Free water you must have ultrafiltration. You can not add that to an e-pure system. You would have to change to one of the UF models found here:

https://www.apswater.com/shopdisplayproducts.asp?id=563&cat=Laboratory+Water+Systems+For+Pyrogen+Free+Applications+-+UF+Water+Polisher+Systems

or here

https://www.apswater.com/shopdisplayproducts.asp?id=564&cat=Laboratory+Water+Systems+For+Ultrapure+Applications+-+UV+%2F+UF+Water+Polisher+Systems


View Q&A list

See Other Technical Articles


APS Scientific Products



Laboratory Water Purification
Quick View

Main Categories

Most Popular

Technical Information
  • Laboratory Water Systems
  • Laboratory Water Filters
  • Laboratory Water Distillers
  • Barnstead Lab Water Systems
  • Hose Barb Filters
  • See All Lab Water Products
  • Filters For Millipore Systems
  • Filters For Barnstead Systems
  • Barnstead Lab Water Systems
  • MicroPure Lab Water Systems
  • Polaris High Flow Water Systems
  • Bottled Lab Water
  • Laboratory Equipment
    		•
  • Lab Water Specifications
  • About Lab Water Applications
  • Barnstead Water Manuals
  • Glossary Of Pure Water Terms
  • Basic Lab Water Contaminants
  • Medicine and Research Water
  • See All Articles


    • Laboratory Equipment
    Quick View
    Main Categories Most Popular Technical Information
  • Glassware Washers
  • Chemical/Biological Fume Hoods
  • Freeze Dry Systems
  • Forensic Enclosures
  • ScrubAir Pipette Washer Dryers
  • See All Laboratory Equipment
  • Evidence Drying Cabinets
  • Fingerprint Fuming System
  • Basic Laboratory Hoods
  • Console Freeze Dry Systems
  • Steam Scrubber Glassware Washers

    		•
  • Lab Water Specifications
  • See All Articles
    		•
    Open To The Public

    Why Use APS??

    Independent Reps Wanted

    Need Live Help?

    Contact Us
    818-786-0600

    Best
    Lab Water System




    50132370
    Barnstead MicroPure UV/UF

    Retail Price : US$8,240.00
    Todays Price : US$7,310.60



    50132373
    Barnstead MicroPure UV

    Retail Price : US$6,950.00
    Todays Price : US$6,185.50
    PreviousNext
    Barnstead MicroPure UV/UF
    Barnstead MicroPure UV/UF

    Barnstead MicroPure Laboratory Water Purification System - Provides Type I Ultrapure Water.

    Systems come with the filters.

    Replacement filters

    This is the replacement for the popular EasyPure UV/UF LF systems.

    Operating Manual

    US$7,310.60 Details
    Barnstead MicroPure UV
    Barnstead MicroPure UV

    Barnstead MicroPure Laboratory Water Purification System - Provides Type I Ultrapure Water.

    Systems come with the filters.

    Replacement filters

    This is the replacement for the popular EasyPure UV LF systems.

    Operating Manual

    US$6,185.50 Details
    PreviousNext

    Top Sellers




    MB1801
    High Purity Mixed Bed Deionizer

    Retail Price : US$221.00
    Todays Price : US$149.80



    GSX28
    O-RING 4.190IDX.139 EPR 50

    Retail Price : US$18.19
    Todays Price : US$15.49



    D0809
    CARTRIDGE ULTRAPURE SPG

    Retail Price : US$240.00
    Todays Price : US$209.77



    Res Care-G
    Pro Res Care Cleaner Chemical Case of 4

    Retail Price : US$152.85
    Todays Price : US$113.22



    CF10D1
    Activated Carbon Filter

    Retail Price : US$25.65
    Todays Price : US$19.04



    SB1801
    High Capacity Dual Bed Cartridge Filter

    Retail Price : US$205.00
    Todays Price : US$143.50



    D50237
    Barnstead Easy Cool Filter - Upflow

    Retail Price : US$114.00
    Todays Price : US$104.20



    HC19H1-D
    IWT 3C0600002 Style High Capacity Filter - Cartridge Universal II

    Retail Price : US$135.06
    Todays Price : US$109.25
    PreviousNext
    High Purity Mixed Bed Deionizer
    High Purity Mixed Bed Deionizer

    Removes ionic contamination from water.

    Comparable to Barnstead D0809 and D5027 Ultra Pure Mixed Bed Filter. vp-17-4010

    US$149.80 Details
    O-RING 4.190IDX.139 EPR 50
    O-RING 4.190IDX.139 EPR 50

    Factory Original - Use with E-pure, B-Pure and Nanopure Quad systems and housings only. 1/pk AKA GSX-28



    US$15.49 Details
    CARTRIDGE ULTRAPURE SPG
    CARTRIDGE ULTRAPURE SPG

    Barnstead Brand Filter
    Comparable to APS Ultra Brand MB1801 filter cartridge, D0808 and vp-17-4010

    US$209.77 Details
    Pro Res Care Cleaner Chemical Case of 4
    Pro Res Care Cleaner Chemical Case of 4

    Case - 4 ea 1 gallon bottles. Same as Res-Up
    Chemical Feeders
    Pro-Res-Care is the pro version Res-Up.
    This item can not be shipped by air freight.

    US$113.22 Details
    Activated Carbon Filter
    Activated Carbon Filter

    Code F, 2.5 inch X 10 inch. Coconut shell carbon block with 10 micron outer wrap. Special Prep 1, for Chlorine removal with low extractable applications - 1/pk
    Filter Housing

    US$19.04 Details
    High Capacity Dual Bed Cartridge Filter
    High Capacity Dual Bed Cartridge Filter

    Reduces dissolved inorganic contamination.

    Comparable to Barnstead D0803 and Harvey AY1273X4 High Capacity Filters.

    US$143.50 Details
    Barnstead Easy Cool Filter - Upflow
    Barnstead Easy Cool Filter - Upflow

    Easy Cool Deionizer Filter - Comparable to APS ULTRA Brand EF06U1

    US$104.20 Details
    IWT 3C0600002 Style High Capacity Filter - Cartridge Universal II
    IWT 3C0600002 Style High Capacity Filter - Cartridge Universal II

    This High Capacity Mixed Bed Deionization Filter is used for the reduction of dissolved minerals. with Color Indicator - Comparable to IWT and US FILTER 3C0600002 and HC200 or HC-200

    US$109.25 Details
    PreviousNext

    Most Popular
    Fume Hoods




    100400021
    4' Protector Premier Laboratory Hood

    Retail Price : US$11,660.00
    Todays Price : US$10,494.00



    100400041
    4 foot Protector Premier Laboratory Hood

    Retail Price : US$14,760.00
    Todays Price : US$13,284.00



    100400061
    4' Protector Premier Laboratory Hood

    Retail Price : US$14,760.00
    Todays Price : US$13,284.00



    100400090
    4' Protector Premier Laboratory Hood

    Retail Price : US$16,535.00
    Todays Price : US$14,881.50
    PreviousNext
    4' Protector Premier Laboratory Hood
    4' Protector Premier Laboratory Hood

    Labconco Brand Product - with 2 service fixtures

    US$10,494.00 Details
    4 foot Protector Premier Laboratory Hood
    4 foot Protector Premier Laboratory Hood

    with built-in blower with 2 service fixtures, 100-115V, 60 Hz

    US$13,284.00 Details
    4' Protector Premier Laboratory Hood
    4' Protector Premier Laboratory Hood

    Labconco Brand Product - with built-in exhaust blower and 2 service fixtures

    US$13,284.00 Details
    4' Protector Premier Laboratory Hood
    4' Protector Premier Laboratory Hood

    Labconco Brand Product - with built-in exhaust blower, explosion-proof

    US$14,881.50 Details
    PreviousNext

    Glassware Washers

    PreviousNext
    PreviousNext

    Best New Product
    Lab Water Reverse Osmosis System

    Lab/Commercial
    Reverse Osmosis System
    Great for Lab Water Pretreatment
    or Great Drinking Water
    Images are representative of the products. Images may or may not be of the actual product. If it is important e-mail us for an actual image if available.

    * Flat Rate UPS shipping when able to ship via UPS and is in the USA excluding Hawaii and Alaska.
    Larger Items may not be able to ship via UPS, in that case freight charges will be quoted seperately.
    International shipping will be quoted after the order is placed. You will have the opportunity to cancel before we finalize your order.

    Terms and conditions
    Credit Application
    Privacy Policy
    List All Products