Do pumps push and pull? (Rad Flush Attempt)

[eTanium]

So, I am trying to flush out my reservoirs, but I am having a problem with my approach, and I wouldn't mind some input.

I have my pump and res together, and attached to my rad - it should pump water into the rad and flush it out. I have the out port of the rad dumping into a temporary container. In this container is section of tubing with a filter at the inlet; this tube is attached to the in port on the res.

The problem is that no water is returning to the res from the temporary container; all the fluid in the res is pushed into the rad and not replaced. Does the D5 pump create a suction in the res, or is the inlet in the res just supposed to receive fluid that is "pushed" into it?

Images below may further explain what I am trying to do.

 

[S_I_N]

pumps normally pull (suck) water from the res and push it thru the loop in your setup with the pumnp mounted to the rez its pushing the water out the outlet you have to keep water in the temp container until the whole loop gets filled

 

[Goldskis45]

^^Also known as priming^^

 

[airdeano]

The problem is that no water is returning to the res from the temporary container; all the fluid in the res is pushed into the rad and not replaced. Does the D5 pump create a suction in the res, or is the inlet in the res just supposed to receive fluid that is "pushed" into it?

the open bowl to res is not "sealed" as the pump relies on gravity to feed it. if the pump had a

dedicated sealed line, then it'd do what you are looking for.

airdeano

 

[eTanium]

Yeah, the picture above is the second attempt, one which I didn't going through with. The first one had a water jug as the temp water container, which was full.

I didn't have the res's fill cap in securely in place, and there was no way to make a vacuum, so that might have been it.

EDIT: Yep, I replaced the filler cap and created the vacuum, and now things are working perfect!

I hope I didn't damage the pump any the first time, because I wasn't able to turn it off before the res ran down a 1/3rd. This D5 moves a lot of water, even on setting #2!!!!

When all the air is out of the loop, it is VERY quiet. I am impressed. I just jostled the temp container and got some air back into the system and that made it loud as all hell, but it is working the air out now.

I can already see a lot of stuff on the screen of the inlet tube! More than I was expecting, especially after only 5 minutes of run time on a low setting.

How long should I run this for? an hour?

Also, I tried to adjust the D5 (it's variable), and it wouldn't go past setting # 2. I don't want to force it and break it. Does anyone have any insight into this?

 

[airdeano]

run it till it discharges no more crap. the pump pumps water not solids.

airdeano