How long can a tummy tuck drain be in? 2 weeks post op.

2-3 weeks is about normal to have the drains in, yes 25ml is about right continue to wear your compression garment for at least 4 weeks. Follow up with you PS to discuss your concerns.best wishes.

Thanks so much for reaching out.  Drains usually stay in for about 2-3 weeks.  It is important to make sure your compression garment is tight enough and that you are wearing 24 hours a day except for the shower.  Do not do any excessive movements or exercises until your drains are out.I hope this helps :)

Drains post-lipoabdominoplasty are not uncommon, although becoming less common in more recent times.
Drains can be left in place for up to two weeks, but beyond this the risk of infection increases as does the formation of a fistula whereby the tunnel made by the drain will get covered in skin and remain open when the drain is removed.
25ml is a reasonable figure. In the U.K. the so-called magic number is

Your drainage is completely normal. Some people simply produce more fluid than others. It's great if we can take drains out at one week, but some people require 1-3 more weeks of drains. As far as the color change is concerned, it can be explained by the liquification of any clot you have under your abdominoplasty flap. When you form little blood clots under your flap, which almost everyone does, they are the consistency of jello. After 7-14 days your body liquifies these clots for resorption. This liquification results in bloody appearing drainage. I know the drain is a pain, but you're doing great. 

Hi and thanks for your question. Yes, sometimes drains can be in for over two weeks. I would advise you to make sure that you are not doing a lot of bending and twisting motions (unloading the dishwasher, laundry.. etc) as this can cause more fluid production. Certainly follow up with your doctor if your concerned but hopefully in the next couple of days this fluid should start to decrease. 
Good Luck!