503reefland Posted June 18, 2020 Share Posted June 18, 2020 Looking for a a decent deal on a dos or dos+ddr set up. 5038943490 I have cash and sps or a combination you choose!🙃 Quote Link to comment Share on other sites More sharing options...
Blue Z Reef Posted June 18, 2020 Share Posted June 18, 2020 If you end up buying new, cheapest I found was eBay. Some sellers have them for $420 instead of the $450 that most online sites sell the combo for. Good luck with the search, they go FAST on R2R 1 Quote Link to comment Share on other sites More sharing options...
SuncrestReef Posted June 18, 2020 Share Posted June 18, 2020 The DDR is notorious for having failed optical sensors and/or liquid damage to its circuit board which is just below the top of the unit. Â Mine had to be repaired by Neptune 3 times in one year for failed sensors. Â It is the only Neptune product I cannot recommend. You can save money and headaches by using any generic dosing reservoirs and adding the DIY optical sensors available on EBay that trick the DOS into thinking you have a DDR connected: https://www.ebay.com/itm/NEPTUNE-APEX-DOS-DDR-DIY-8-CABLE-2-OPTICAL-LEVEL-SENSORS-USE-YOUR-RESERVOIR/254602775253?hash=item3b47820ad5:g:DW0AAOSw9V1ae1f2 3 1 Quote Link to comment Share on other sites More sharing options...
503reefland Posted June 20, 2020 Author Share Posted June 20, 2020 On 6/18/2020 at 6:37 AM, SuncrestReef said: The DDR is notorious for having failed optical sensors and/or liquid damage to its circuit board which is just below the top of the unit.  Mine had to be repaired by Neptune 3 times in one year for failed sensors.  It is the only Neptune product I cannot recommend. You can save money and headaches by using any generic dosing reservoirs and adding the DIY optical sensors available on EBay that trick the DOS into thinking you have a DDR connected: https://www.ebay.com/itm/NEPTUNE-APEX-DOS-DDR-DIY-8-CABLE-2-OPTICAL-LEVEL-SENSORS-USE-YOUR-RESERVOIR/254602775253?hash=item3b47820ad5:g:DW0AAOSw9V1ae1f2 Thanks I am willing to buy somthing that needs a new sensor for the right price 🙃 Quote Link to comment Share on other sites More sharing options...
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