Clients and php-fpm processes

[vel]

I've been using 3 clients in the official Kloxo as it was a recommended way to have a control on fastcgi processes (php-cgi).
When upgraded to Kloxo-MR, I can see now these groups of php-fpm:
php-fpm: pool client1 (x 4)
php-fpm: pool client2 (x 4)
php-fpm: pool client3 (x 4)
php-fpm: pool default (x 4)
php-fpm: pool admin (x 4)

Are admin and default really needed or I can remove them? I have domains only under client1, client2 and client3, no domains under admin.
Also, as I am running it under lighttpd, there is 5 instances of it running:
apache    1836  0.0  0.2   6828  1428 ?        S    05:19   0:00 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
apache    1837  0.0  0.4   7680  2488 ?        S    05:19   0:00 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
apache    1838  0.0  0.4   7776  2580 ?        S    05:19   0:00 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
apache    1839  0.0  0.4   7708  2516 ?        S    05:19   0:00 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
apache    1840  0.0  0.4   7708  2516 ?        S    05:19   0:00 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
Can I also remove 2 of these?
Thanks