One confession.  I havent been doing a true r/s/r of the bp.. I've been doing a rinse where I fill up thepail to the top with water and dump the water out...  refill with water to the top and let it soak.. and then after an hour.. I dump that water out and add my supps and add more water to make it slushy.. Why do I do this?  People have complained ,where I board, allegedly about the bp water odor and now I have to walk quite a ways to dump the water each time so I'm doing above.  ( I have another horse so this is a mini-chore) Would this one missed step of  not doing the rinse be causing higher lab values than if I did another rinse?I can do a better r/s/r if I should   lj friedman san diego nov 2014

The first rinse is important as it gets the surface iron off the bp.  

If you can swing it you could do this at home and save yourself some hassle. A super easy way is to get some of those nylon paint strainer bags and put your bp in it for rinsing. I use those lace lock thingies and some stretchy cord to "tie" the bags shut.  I also have one of those little metal mesh thingies to cover the drain in case of bag malfunction. Though someone good with knots could use string?  A miller's knot perhaps?  

Rinse with running water (those cool shower hose things popular in kitchen sinks are great for this).  You can then fill the sink, soak, empty sink,rinse the bp again and set in a colander to drip for a bit.  Put the bag in a plastic bag to take to the barn.  

I do this daily with 50 oz (dry weight) of bp for my mare.