Well still no luck on the drain noise coming from my main drain. There is definitely no bubbles coming from the top or getting sucked in at the bottom. But I don't understand where they can be coming from in the line. The only thing I can think of is that somehow the drain is sucking in air from the piping? But if that's the case, I would think I'd see some dripping somewhere...
How are your drains ending in the sump? Are they under the water line? I can't see it in the photos.
My concern with the main drain is mostly because there is air (bubbles) entering the sump, and less about the noise. Frankly my MP-40's are louder, lol.
But I was stumped with the air. There is no way it is entering the line from the overflow and the fact that bubbles are still coming out 24 hours after re-start leads me to believe air is entering the drain pipe somewhere...even though it is not leaking at all.
So last night I ran a pressure test. I closed the main drain valve and switched off the return pump. I then capped the bottom of the main drain and opened the valve back up. This filled the return pipe and gave it some pressure from the full overflow pushing down.
And...a leak, not even a slow drip, but a fast drip. It's a glued seal between my valve and spa flex. I can only guess that when the water is draining down, it's moving so fast that it's sucking air through the leak rather than dripping water out. With the water not moving in the pipe, it has a chance to leak out.
So I closed the valve and uncapped the pipe. I'll let it dry out for a day, patch the leak, then let that dry for a day or two before resuming.
I really hope my trials and errors/discoveries will help someone else along the way!
On a positive note, I spent my evening setting up my Apex, connecting it to the network, installing the latest firmware, setting up Apex Fusion, and connecting the wireless adapter. Now once I get the salt added, I'll just need to plug in some probes and I'm good to go.
My Apex is not only fun to play with but is the backbone of my tank. I love it. :love2:
Ok, I need to vent a little...
Last night I calibrated and installed my pH probe. It was fairly straight forward and easy to do. It took me a couple of attempts to get it right, but everything worked out.
Then...the Salinity Probe...who at Neptune Systems thought this one up...
So measuring Salinity on my Apex sounded like a great idea. I can use it for alarms and turning off the ATO if necessary. So I bought the PM2 and the Salinity Probe.
Last night I pulled out all the instructions to calibrate it.
First, I find out that they didn't include calibration solution with either the module or the probe...
Second, I find out that in order to properly calibrate, you also need a second temperature probe...
Third, and the icing on the cake, the PM2 module cannot calibrate the temperature probe like the base module, so you need to buy a NIST certified thermometer to calibrate the new temperature probe you need to buy...
I swear, you can't make this stuff up! Of course I'm already to far into this to back out, so I now have the new parts on order and hope to get this probe working in the not to distant future...
There a lot of threads/how to's on sea Klear on here and Google along with how to use it in a reef tank to remove the phosphates (what he is doing by cooking the rock) .I always found the apex to be a high dollar item that helps monitor things but nothing will replace weekly testing and water changes the probes do fail from time to time and as you mentioned can be frustrating to calibrate. I do love the fact that you have safety from heater malfunctions with the apex but I worked around this using 2 smaller heaters if one sticks on it will never heat the tank enough to do any damage. The 2 small heaters keep the system temp stable without worry.
I gave up with auto top offs also to many disasters. once a day manual top offs works well enough draw a line on your sump and just fill to the line with rodi when you feed. I have a simple pump in my top off reservoir attached to a DJ bar all I do is press a button till the water is at the determined sump water level and never worry about a auto top off malfunctioning.
Listen to your corals they will always tell you when something is wrong, the best solution for pollution is dilution. I sorta prefer to use the KISS method all the gadgets are cool but people have been keeping reef tanks for decades without them and that just means more funds for your squishy friends.
Im curious about seaklear but all I can find is that it is used to remove phosphates from swimming pools. I noticed your going to run gfo so I am not sure you need the seaklear chemical. seaklears website cautions it causes skin irritation to humans who knows what it will do to livestock.
EMERGENCY OVERVIEW
Clear to light orange liquid.
CAUTION: May cause irritation to exposed areas of body
The good old ammonia cycle followed by running gfo to remove phosphates when the cycle is complete works and there is no chance of some chemicals being left behind to harm your livestock. I would also wait to run your gfo and carbon reactors till your cycle is complete. your tank will look nasty for a while but that is a good thing it means the cycle is working. You can jump start the cycle by using a fellow reefers skimmate and dumping it in your tank.
Glad to hear you got your plumbing woes solved , keep up the good work can't wait to see this thing full of rocks and squishy friends.