[Harp-L] clogged harps

[Connie Estep]

I play Lee Oskar 10 holw harps and have clogging problems when I play one
harp a long time. I play with several different groups as the only
harmonica player. One group meets twice monthly for 2 -1/2 hours and
everything is in the key of D. I had to buy another D harp to keep playing
the whole time as I was losing notes because of saliva clogging.  By
switching back and forth I can make it through the afternoon.  Any tips on
avoiding this problem?
Connie