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I cleaned the filter and it starts up fine, but it had always done that after I cleaned the filter. Starts up around 1.7-1.8 gpm and then withing a couple of minutes the vibration starts and it slowly goes down to .4 and shuts down. Is it possible the pump is not the right size or that the...

I capped off the spiro and isolated the manifold and purged one loop at a time and then purged the entire system after this. The sprio was the problem drawing air into the system. It took an hour and a half, but all of the air is out. Unfortunately that did not solve my problem. I ran my pump by...

I have a spirovent at the top

That Wayne PC4 pump has a pretty high flow rate and I let it run over 20 minutes for just one lop and the air was still coming out strong. Like 2000xpsd said, it may be getting sucked in at the spirovent. Is this common knowledge and I just missed it?

Ummmm. I feel like an idiot, but no and that was a thought as I was doing this as it seemed like it was sucking air. It did not come with a cap, but I will cap it off and try again tomorrow. If this works I now owe you two cases of beer

So I decided to close off the last 3 loops and try to purge air out of the first loop only. I could not believe the amount of air in there. The problem is I let it run for over 20 minutes and there is still a substantial amount of air coming out. So much so that you can hear it running through...

So I tried flushing the system again for 15-20 minutes and now I have major problems. It didn't really run much throughout the day as I only had it set on 50, but when it did run it was on 120 degrees and seemed to be running fine. I went out there tonight and the pump was running and not the...

Ok, thanks. Just wondering why the air doesn't escape through the spirovent like it should. There can't be that much in there after running the transfer pump for 10+ minutes.

I am assuming by super vent you are talking about the spirovent? I figured there would be micro bubbles left in the system, but I thought it was the job of the spirovent to remove those, no? Sounds like I need to shut it down and run my transfer pump for a little while and then like goneflyin...

It seems to be struggling to heat the shop at 110. The instant I move it up to 115 the noise starts. Does seem like a combustion problem to me as well. It was down to 1.5 gpm this morning so I cleaned the filter again and it is back up to 2 for the time being. I am also going to talk to the tech...

I had tried that and the tech said that only works for the TK3 unit. Turned it down to 110 degrees and the noise is gone. Do you think it is ok running at 110?

So I have cleaned the filter 6 or 7 times and I am now getting 2GPM, but it is still making the noise after about 5-10 minutes of running. I called Takagi and he had me extend the 3" PVC outside for the input as he thought they may be too close to each other. This didn't help. He sent me some...

Yes, they are backed off as much as I could, but I will double check. Yes, the cap is off I just need to find out why I have water inside the unit. Going to flush it and get it running again in a few. Will report back. Thanks for all of your help

It was a little dirty. It was kind of hard to tell because everything on there was so fine. I am tempted to take the damn thing out of there. I can't see stuff that tiny causing a problem in the system, maybe I am wrong, but the more I think about it the more I think the filter may have been...

I took your advice and cleaned the filter, but you obviously loose a lot of fluid doing this so now the damn thing won't run at all. The pump turns on but the hwh will not turn on. I think there is an air lock in there. I will have to get out the pump tomorrow and re flush the system. What a...

I ended up cutting a section of pipe out and putting in two new hose bibs with a shutoff in between. Filling went very well so I am glad I spent the time to do this. It has been running for 3-4 hours now and I am having a problem with the HWH. It is vibrating really loudly. It started off quiet...

I am just worried if I use the manifolds it is going to loop around and come right out of the other manifold bib and not fill the rest of the system. I hate having to re-do things, but in this case I am wondering if it would just be easier to add two more bibs with a shutoff in between at the...

I am no expert by any means, but I think your Spirovent needs to be at the top and you should have an expansion tank. Maybe the experts will correct me if I am wrong. How is it running?

Why would I need a bib at the top if I can use the ones on the manifold. Thanks for the tip on the pump only. I was just going to start the whole thing. I have read 12 PSI to start with, is this not correct? I guess it makes sense it would increase as the temps go up. I bought a Wayne PC4 pump...

I am finally ready to fill my radiant heat system and would like those of you with more experience to look over my system before I do so. :D I tested it with air and there are no leaks. Here are the specs: 1200 sq\ft, R19 in the walls, R 30 in ceiling Slab on Grade, 4-300' loops Takagi...