City of Cardiff swimming coach Dave Haller says that even if the elite centres are hit by reduced funding, it is vital that the grassroots clubs are protected.
Haller is the former coach of Olympic silver medallist David Davies and current mentor of new Welsh record holder Ieuan Lloyd.
Swansea's status as a training centre for elite swimmers is under review after the sport's funding was cut.
UK Sport on Tuesday announced a £4m reduction in elite funding after British swimmers won only three medals at the Olympics.
Swansea is one of five British intensive swimming training centres.