Anna & Pablo’s RSR P650
- Thread starter svreef
- Start date
iani
Supporting Member
Hope when you come home something was just wrong with the trident.
Coral reefer
Past President
That isn’t necessarily a death sentence either. Depends how slowly it went down and how slowly it comes back up a lot IMO. Good luck!
So, Trident said 6.6 when I got home last night. I had my son dose some AFR manually during the day but it didn't seem to have the expected effect - maybe it just helped to keep it from plummeting further. This morning Trident said 7.5, Hannah said 7.9 and Salifert said 8.0. So, I think I'm out of the woods. Nothing looks to have been affected, but I hear Alk swings take a week or two to manifest.
I still don't know what happened. My best guess is that the dosing line was sucking a lot of air. When I ran it manually today, it took a while to get to drops, but it did eventually. I need to get to the bottom of this today.
I still don't know what happened. My best guess is that the dosing line was sucking a lot of air. When I ran it manually today, it took a while to get to drops, but it did eventually. I need to get to the bottom of this today.
I keep having dosing issues and I can’t figure out what is going on. I’m using a DOS. I replaced all the tubing and put the dosing end into a graduated cylinder. It should be dosing 7ml per hour. The first hour, I got 10. The second hour I got 5. The third and fourth hours, I got nothing.
At that point I primed it manually and it took a long while to get drops out again. So, it seems like it is sucking in air somewhere but not immediately. I’m not sure what to do next.
At that point I primed it manually and it took a long while to get drops out again. So, it seems like it is sucking in air somewhere but not immediately. I’m not sure what to do next.
Coral reefer
Past President
Maybe the tubing inside the pump head has tiny hole. That’s what happens to the bubble magus ones eventually.
H2OPlayar
Supporting Member
You aren't making me want to put my DOS on my tank... I am having success with bubble magnus. I have an extra if you want to borrow it until you get your DOS figured out.
RandyC
Supporting Member
You’re getting air in the line somewhere. I hate those nipple and screw down connectors. Always was leaky for me.
I switched mine to use 1/4” push connect. The threading on the dos connector is 1/8” NPT so you could just buy a four of 1/4” Push connect adapter to 1/8” NPT. I also used thread sealant to prevent any leaks on the adapter threading. Haven’t had a problem for over a year and a half since switching.
I didn’t realize it now until I searched, but saltwater aquarium has a 4-pack made especially noted for DOS.
4 PACK - 1/4" x 1/8" nptf Female Adapter WHITE (Apex DOS Fitting) - Mur lok
Shop The Best Saltwater Aquarium Equipment & Supplies at Saltwater Aquarium. We Carry Everything you will Need for your Fish Tank.
www.saltwateraquarium.com
Amazon has it cheaper per adapter, but only sells in a 10-pack.
John Guest Speedfit PP450821W 1/4OD by 1/8NPTF Female Adapter, 10-Pack - Pipe Fittings - Amazon.com
John Guest Speedfit PP450821W 1/4OD by 1/8NPTF Female Adapter, 10-Pack - Pipe Fittings - Amazon.com
smile.amazon.com
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RandyC
Supporting Member
Ahhh. The John Guest adapter don't have as deep of threading. They wouldn't go that far to press on the pump housing.
H2OPlayar
Supporting Member
I am going to have questions for you about this tomorrow when you stop by! Looks great!
I’ll go in on a 10 pack of these fittings since I have a second DOS and now that I understand the problem, I’d like to see the difference.
RandyC
Supporting Member
Did you cut the nipples?