2003 Honda Accord Power steering

Noisy P/S pump replaced after it began leaking. New pump also noisy. Lots of bubbles in new fluid even after new fluid flush and bleed. 3 times during bleed the fluid backed up and overflowed through reservoir - lots of foam and fluid! Can't maintain vacuum at reservoir with hand pump. Possibles: Leaking hose(s), new pump bad, rack/pinion pressure relief is gone. What's your opinion? Remedy? Thanks.