Aqua Systems AQPC-35 - User Manual

Questions and Answers

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Rebecca WeaverAug 4, 2025
Why is there low pressure at the Aqua Systems Water System dispensing faucet?
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  Andrea ButlerAug 4, 2025
  If you're experiencing low pressure at the dispensing faucet of your Aqua Systems Water System, it could be due to several reasons. A plugged activated carbon post filter can restrict water flow, so replace the post filter. If the air precharge in the holding tank is too low, empty the water and adjust the air pressure to 5–7 psig (35–48 kPa). Ensure the holding tank valve is fully open. The dispensing faucet itself might be faulty, requiring repair or replacement. If there's been heavy water use, the holding tank may be depleted; allow it to refill, or consider adding a second holding tank to increase storage capacity. Also, consider that low water production can cause low pressure; refer to the 'Low Quantity of Product Water from Holding Tank' section for solutions.
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Bryan GreenAug 8, 2025
What to do if Aqua Systems AQPC-35 Water System drain water overflows at the dispensing faucet?
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  John MillsAug 9, 2025
  If drain water overflows at the dispensing faucet of your Aqua Systems Water System, consider these potential causes and solutions: * The air gap may be blocked; clear the air gap. * The drain tubing may be clogged; clear the tubing. * The drain clamp hole may be misaligned; align it with the hole in the drain pipe. * There may be an excessive drain flow rate; replace the drain restrictor.
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danielmendozaAug 12, 2025
How to fix high total dissolved solids (TDS) in Aqua Systems Water System product water?
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  Janet PerezAug 12, 2025
  To address high Total Dissolved Solids (TDS) in your Aqua Systems Water System's product water, check the following: Ensure the product water and drain water lines are not reversed by correcting the plumbing. If there's no drain flow, the drain restrictor could be clogged, so clear or replace it. Similarly, a plugged drain orifice in the dispensing faucet can cause this issue, so clear or replace the faucet. If the ASO valve isn't closing, repair or replace the ASO valve components. A new activated carbon prefilter might not be rinsed completely; flush with several full tanks of product water. Finally, an increase in feed water TDS will result in a corresponding increase in product water TDS.
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Patricia ButlerAug 17, 2025
Why does Aqua Systems AQPC-35 product water have high total dissolved solids (TDS)?
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  Latoya MillerAug 17, 2025
  High Total Dissolved Solids (TDS) in the product water from your Aqua Systems Water System can stem from several causes. The sediment prefilter or activated carbon post filter may be clogged, so replace the filters. Low water pressure, where feed water pressure must be above 40 psig, can also contribute. An R.O. membrane O–ring might be crimped; check the O–ring. Similarly, the R.O. membrane brine seal may not be sealing up into the manifold head; check the brine seal. Finally, the R.O. membrane may be expended; if its life is unusually short, identify and correct the problem before replacing the membrane.
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Victoria CarterAug 21, 2025
How to eliminate tastes and odors in Aqua Systems AQPC-35 product water?
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  Michelle RoweAug 21, 2025
  To address tastes and odors in the product water of your Aqua Systems Water System, consider these points: The activated carbon prefilter might be exhausted; replace the filter. Foreign matter could be present in the holding tank; clean, flush, and sanitize the system, and replace the filters. Ensure the product water and drain water lines are not reversed by correcting the plumbing. Dissolved gasses in the feed water may also cause this issue; pretreat the feed water to remove them. Also, consider that an increase in product water TDS can affect taste and odor; refer to the section addressing high TDS in the product water.
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david02Aug 26, 2025
What should I do about fitting leaks in Aqua Systems AQPC-35?
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  Melinda ProctorAug 26, 2025
  To address fitting leaks in your Aqua Systems Water System, close the feed water saddle valve and relieve pressure before disconnecting any tubing or replacing any fitting. Before replacing a fitting, try re-cutting the tubing and re-inserting it into the fitting to see if that resolves the leak. If pipe threads are leaking, remove the tape and re-tape with Teflon tape.
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Lauren LeeOct 30, 2025
What to do if Aqua Systems AQPC-35 Water System produces low quantity of product water?
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  Anna LeOct 30, 2025
  If your Aqua Systems Water System produces a low quantity of product water, several issues could be the cause. The feed water saddle valve might be plugged or closed, so open or unclog it. The sediment prefilter or activated carbon post filter might be clogged, in which case you should replace the filters. Low water pressure could be the culprit; feed water pressure must be above 40 psig. A fouled R.O. membrane could also be the problem; check the feed water operating limits, correct the cause of fouling, and replace the membrane. If the air precharge pressure in the holding tank is too high, empty the water from the holding tank and, with the faucet open, adjust the air pressure to the 5–7 psig (35–48 kPa) range. A ruptured air bladder in the holding tank necessitates replacing the tank. ...