diff -r e50a5003c7ac -r d77891f8915d thermferm/server.c
--- a/thermferm/server.c	Tue Apr 23 20:45:29 2024 +0200
+++ b/thermferm/server.c	Wed Apr 24 11:04:00 2024 +0200
@@ -1532,7 +1532,7 @@
 			unit->door_idx = unit->light_idx = unit->psu_idx = unit->profile_fridge_mode = \
 			unit->profile_duration = unit->profile_totalsteps = 0;
 	unit->profile_steps = NULL;
-	unit->volume = unit->prof_peak_abs = unit->prof_peak_rel = 0.0;
+	unit->prof_peak_abs = unit->prof_peak_rel = 0.0;
 	unit->air_state = unit->beer_state = unit->chiller_state = DEVPRESENT_NO;
 	unit->air_temperature = unit->beer_temperature = unit->chiller_temperature = 20000;
 	unit->beer_set_lo = unit->beer_set_hi = unit->fridge_set_lo = unit->fridge_set_hi = unit->profile_inittemp_lo = unit->profile_inittemp_hi =20.0;
@@ -1614,7 +1614,6 @@
 		srv_send(s, (char *)"PRODUCT_CODE,%s", unit->product_code);
 		srv_send(s, (char *)"MODE,%s", UNITMODE[unit->mode]);
 		srv_send(s, (char *)"STAGE,%s", UNITSTAGE[unit->stage]);
-		srv_send(s, (char *)"VOLUME,%2f", unit->volume);
 		srv_send(s, (char *)"AIR_ADDRESS,%s", unit->air_address);
 		srv_send(s, (char *)"AIR_STATE,%s", DEVPRESENT[unit->air_state]);
 		srv_send(s, (char *)"AIR_TEMPERATURE,%.3f", unit->air_temperature / 1000.0);
@@ -1761,13 +1760,6 @@
 				unit->product_name = xstrcpy(val);
 				unit->mqtt_flag |= MQTT_FLAG_DATA;
 
-			    } else if (val && (strcmp(kwd, (char *)"VOLUME") == 0)) {
-				if (sscanf(val, "%f", &fval) == 1) {
-				    if (unit->volume != fval)
-					syslog(LOG_NOTICE, "Fermenter unit %s volume %.3f to %.3f", unit->uuid, unit->volume, fval);
-				    unit->volume = fval;
-				}
-
 			    } else if (strcmp(kwd, (char *)"AIR_ADDRESS") == 0) {
 				if (val && unit->air_address && (strcmp(val, unit->air_address)))
 				    syslog(LOG_NOTICE, "Fermenter unit %s air address `%s' to `%s'", unit->uuid, unit->air_address, val);