What could cause the pressure to rise within 30 minutes in a DE pool filtration system?
This is normal with my DE filter. When I first turn the pump on the pressure starts at about 5 psi. During the next 30-60 minutes, it rises to 15 psi and then stablizes there. So, I use 15 psi as my "starting" pressure and don't backwash until it reaches 20 psi.
When was the last time you had the filter broken down and cleaned????
gfr is the net results of the balance between hydrostatic pressures &colloid osmotic pressures of intra vascular compartment & within the Bowman's capsule,where the net pressure gradient is towards filtration.i.e. "Net filtration pressure".Any method which will reduce this net filtration pressure will reduce GFR.That can be achieved by increasing the plasma globulin ad albumin level(increase colloid osmotic pressure),hypotension and addition of vasocostrictor at afferent and vasodialtors at efferent tubule(reducing capilary hydrostatic pressure) or obstructing the…
It is important because capillaries do most of their work of exchanging gases, oxygen and carbon dioxide, by diffusion, which works best under less pressure. ???That is not quite right. Exchange of gases occurs when there are different concentrations in a given sample and it has nothing to do with pressure. Filtration occurs under different pressure, diffusion happens regardless of pressure.