Excalibur EWR 5075C - User Manual

Questions and Answers

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Dorothy LyonsAug 11, 2025
What to do if there is low pressure at the Reverse Osmosis Dispensing Faucet of Excalibur Water Filtration Systems?
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  Jennifer ChristianAug 11, 2025
  If you have low pressure at the Reverse Osmosis dispensing faucet, here are some possible reasons and solutions: * The in-line activated carbon post filter may be plugged. Replace the post filter. * The air pre-charge in the Reverse Osmosis holding tank may be too low. Empty water from the holding tank with the faucet open, and adjust the air pressure to 5-7 psig (35-48 kPa). * The holding tank valve may be partially closed. Fully open the holding tank valve. * The dispensing faucet itself might be out of adjustment or faulty. Repair or replace the dispensing faucet. * The holding tank may be depleted after heavy water usage. Allow the holding tank to refill, or consider adding a second holding tank to increase storage.
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Jonathan LeeAug 23, 2025
How to remove tastes and odors in the product water of Excalibur Water Filtration Systems?
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  Laurie SandersAug 23, 2025
  Tastes and odors in the product water from your Excalibur Water Filtration Systems can arise from several causes: * The in-line or activated carbon pre-filter may be exhausted. Replace the RO filters. * There may be foreign matter in the RO holding tank. Clean, flush, and sanitize the system, and replace the filters. * The product water and drain lines may be reversed. Correct the plumbing. * There may be dissolved gases in the RO feed water. Pre-treat the RO feed water to remove dissolved gases.
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William ScottNov 1, 2025
Why is there a low quantity of Reverse Osmosis product water from the holding tank in my Excalibur Water Filtration Systems?
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  Jeremy RuizNov 1, 2025
  If you're experiencing a low quantity of Reverse Osmosis product water from the holding tank, here are a few things to check: * Make sure the Reverse Osmosis feed water ball valve is open and not plugged. Unclog or open the valve if needed. * Replace the Reverse Osmosis filters, as the sediment pre-filter or activated carbon pre-filter might be clogged. * Ensure the feed water pressure is above 40 psig. * Address any causes of fouling and replace the membrane if it's fouled. See feed water operating limits. * Replace the post filter if the in-line activated carbon post filter is plugged. * Empty water from the Reverse osmosis holding tank and with the faucet open, adjust air pressure to 5-7 psig (35-48 kPa) range, if the air pre-charge pressure is too high. * Replace the hol...