Ordered new style U-tubes and when installed did seem as if it took up water faster than the old style. Im not sure if the design helps with anti-siphon but seems to be faster when the siphon was lost.

Purchased a new style lid also.

sadly new lid was cracked

So here is the deal, while new style U-tube works perfectly fine with old filter, the old lid would not. Old lid would hit the little lever to adjust flow on top of U-tube. You need the new lid or grind down the lever to use the new U-tube.

Purchased a new style lid also.

sadly new lid was cracked

So here is the deal, while new style U-tube works perfectly fine with old filter, the old lid would not. Old lid would hit the little lever to adjust flow on top of U-tube. You need the new lid or grind down the lever to use the new U-tube.


