In the present work, we have assessed the accuracy of the db-MBE in combination with CCSD(T) for neutral, protonated, and deprotonated water clusters. To arrive at an efficient scheme and to reduce the computational overhead of the db-MBE compared to the eb-MBE, we replace the use of coupled-cluster densities by HF densities, and show that this is possible without noticeable loss in accuracy. Nevertheless, a description of the density that includes electron correlation effects might still prove useful for systems in which these play a more prominent role, and other efficient ways of generating coupled-cluster densities, such as using Brueckner orbitals, remain to be explored.