Suggestions on adding Ant-freeze to flat laying pipes

krisiak11

Silver Supporter
Jul 31, 2017
41
Archbald, PA
Anyone have a suggestion on how I can get some anti freeze into this return line? It lays flat and has a 90 degree angle, I tried a tube hooked to a funnel, but the tube would not make the angle. Tried blowing it thru with a shop vac and that just made a mess, I might have gotten some in, but not enough to feel comfortable. In the pic, it is the line coming back after the saltwater cell.
 

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